VintRR-digest Thursday, April 24 1997 Volume 01 : Number 021 ---------------------------------------------------------------------- Date: Wed, 23 Apr 1997 8:00:00 -0400 From: John.Martin@fluordaniel.com Subject: VintRR BSA/TRIUMPH TRIPLE TH6 CAMSHAFT TIMING I am trying to time the full race camshafts of my friends Rocket 3 vintage racer. I have a leaflet from Norman Hyde which states valve lift at TDC on overlap at .230/.245 thou for inlet & .175/.190 for exhaust (from memory). With a dial gauge on the valve collars the readings are .020/.030 too low. Advancing the timing pinions one tooth opens then too much. I gather I have to put the pinions back on the cams using one of the three different keyways which will alter the lift in smaller increments. (One tooth equals 15 deg, each keyway 5 deg. change) Do I put the camshaft at the correct valve lift & the crankshaft at TDC & then use the best tooth/keway combination? Does anybody have the opening / closing figures with valve clearances stated for these cams? Maybe if I dont get this done correctly I will be able to beat him at the first race of the year tee hee! ------------------------------ Date: Wed, 23 Apr 1997 18:07:57 +0100 (BST) From: Philip PickSubject: Re: VintRR BSA/TRIUMPH TRIPLE TH6 CAMSHAFT TIMING On Wed 23 Apr, John.Martin@fluordaniel.com wrote: > I am trying to time the full race camshafts of my friends Rocket 3 > vintage racer. I have a leaflet from Norman Hyde which states valve > lift at TDC on overlap at .230/.245 thou for inlet & .175/.190 for > exhaust (from memory). With a dial gauge on the valve collars the > readings are .020/.030 too low. Advancing the timing pinions one tooth > opens then too much. I gather I have to put the pinions back on the > cams using one of the three different keyways which will alter the > lift in smaller increments. (One tooth equals 15 deg, each keyway 5 > deg. change) Do I put the camshaft at the correct valve lift & the > crankshaft at TDC & then use the best tooth/keway combination? In short, yes. > Does > anybody have the opening / closing figures with valve clearances > stated for these cams? If using these out of date and nasty cam forms I always use the old favorite figues, of lobe centre inlet 98 ATDC, and exhaust 102 BTDC Clarances suggested are .005 inlet .007 exhaust One set of quoted open/close figures, at unspecified follower lift are: 43 dtc / 59 abc 63 bbc / 39 atc Hope this helps. - -- Philip Pick, Triple Cycles, 228 Henley Road Ilford Essex IG1 2TW England Telephone +44 181 478 4807 Fax +44 181 478 4807 ------------------------------ Date: Wed, 23 Apr 1997 16:44:44 -0400 From: tharris@nornet.on.ca (Tim Harris ) Subject: VintRR 350 Honda What year did they first put Disk Brakes on the 350 CB Hondas???? Thanks in advance... Tim Harris Tim's Euro-Passions http://www.nornet.on.ca/~tharris/ 1972 Ducati 750 GT Imola Cafe Racer 1975 Ducati 860 GT 1985 BMW K75 1988 Yamaha 250cc Virago "Route 66" 1990 Honda Hawk GT ------------------------------ Date: Thu, 24 Apr 1997 13:08:14 -0500 (EST) From: ben.english@DMVMS.mailnet.state.ny.us Subject: VintRR CB350 Honda disc brake Tim Harris asked: >>What year did they first put Disk Brakes on the 350 CB Hondas????<< It was the last year. It was known as the CB350K5 or CB350G. The next year we got the CB360, proof that "progress" frequently amounts to making things cheaper, rather than better. And as a relative sales flop, that manufacturers need to provide some high tech razzle-dazzle to distract the buyer from the throwaway nature of his new toy. But what was that year? 1974 I think for the last 350, 1975 for the first 360. Or am I off by a year? If so, which way? Ben English 1972 Norton Commando Combat Roadster #201695 / 1972 Olmo 10 speed Amtrak National Timetable / Pocket full of bus tokens / Good shoes ben.english@dmvms.mailnet.state.ny.us Albany, New York, USA ------------------------------ End of VintRR-digest V1 #21 *************************** VintRR-digest Friday, April 25 1997 Volume 01 : Number 022 ---------------------------------------------------------------------- Date: 24 Apr 97 16:54:56 EDT From: Mark Hatten <102136.3317@CompuServe.COM> Subject: VintRR Vintage Race Report Hey All: I know an Ascot is not really a vintage bike, but it's eligible for WERA Vintage, so what the heck. For the terminally bored, here's my race report from Summit Point. I'll spare you and only report on my Vintage race on Saturday. If you're a real glutten for punishment and want to read about my Clubman and Twins adventures on Sunday, check out my web at http://members.aol.com/hatman97 Mark SUMMIT POINT, WV -- April 12-13 -- Id heard the lore of Summit Point -- or Scummit Point, or Slippery Point, depending upon who you talk to. Stories of non-existent traction, a racing line six inches wide, a surface so polished that you can actually be blinded by its reflection late in the day. Mention the word rain¶ in the same sentence with Summit Point, and the locals just look at you with a somewhat maniacal grin. So it was with a fair amount of trepidation that I headed to Summit late Friday night with two racing buddies for a WERA regional race weekend. One buddy had cut his teeth racing at Summit, and the other, also a local, had turned quite a few laps on the track in race cars. They spent much of the trip recanting Summit Point lack-of-traction horror stories. Factor in the same from our DC-based friends we hooked up with at the track, and I was convinced that just remaining upright in the pits might be an accomplishment. However, with a AHRMA National being held there May 3-4 (with no Friday practice day -- something tells me you guys will be hearing about that at the rider's meeting, John G.) it seemed like a good chance to acquaint myself with a new track. After a leisurely three hours of sleep at Seans parents house, we hit Summit about 7 a.m. Saturday. The first practice session didnt seem bad. Armed with the advice of never, ever, ride anywhere but the concrete patches in the corners, the Mighty Ascot (tm) and I felt our way around the track. Fun layout, not too bumpy, and the section of the track (three corners) that had been repaved was actually quite nice. The bike was running well, and I was looking forward to the days Vintage racing action. That is, until the rain drops started hitting my shield in the closing laps of the session. Great. Im already psyched out about the track in the dry, and now its raining. And here comes more stories about people crashing, even while simply riding down the straightaways. So, now swathed in my $10 Yamaha rainsuit, I prepared for my second and last practice session of the day. First problem -- the crotch of my rainsuit blew out when I swung my leg over my bike. I lost weight over the winter, but I guess not where it counts :-) Second problem -- pouring rain, wet tires, and wet metal starting rollers are not a good combination. No traction, no starting. Third problem -- wet tires and wet asphalt are almost as slick. A few runs and well-timed drops on the seat got the fire going, and after my heavy breathing stopped fogging my shield, I headed out for practice. Naturally, in the very first turn, a rider crashed in front of me, going maybe 20 mph. I filed that in my brain for a data point (do not exceed 20 mph in turn one¶). Unfortunately, after one lap my mind was full of data points as people were slithering off the track left and right. I now only had one brain data point -- do not crash in practice; if you must crash, at least save it for the race. My race, Vintage 4, was the first race of the day. As I rolled to the line after yet another shield-fogging bump start, it was raining with a monsoon-like intensity. The starter, who had spent at least 20 minutes during the riders meeting explaining exactly how the starting procedure would take place, proceeded to completely ignore his own instructions, catching nearly the entire grid, myself included, with our shields up and bikes in neutral. Despite the surprise start, I still tiptoed into the first turn in second place, and immediately took the point when the lead rider crashed. Me lead was short-lived, however, as I was passed while cautiously exiting turn two. That rider -- and as Dave Barry would say, Im not making this up -- then proceeded to crash in front of me ON THE STRAIGHTAWAY! It had now become obvious to me that, despite riding like a complete weenie, I was on the threshold of physics. Like the speed of light, nature was dictating that the Speed of Mark could not be exceeded. Try, and the ground would rise up a smite thee. The race was unfolding like a Laugh-In skit -- riders were falling left and right. A torrential river of mud and water flowing between turns seven and eight claimed more than a few bikes. (I discovered that, like in cattle drives in the Old West, you merely needed to enter the river at a point upstream of where you hoped to exit.) In fact, one rider fell victim to the river directly in front of me. Due to the low speeds, he didnt even slide off the track. Realizing he was laying on the racing line, the rider was furiously attempting to crawl to safety. However, the lack of traction basically had him spinning in place, like a cats initial acceleration on a hardwood floor. My eyes tearing from the laughter, I managed to avoid him and not crash myself. Okay, at some point in the race (which was shortened to four-laps -- the longest four laps of my life) some guy -- who obviously didnt pay attention during physics classes -- did manage to flaunt Marks Law, pass me, and not crash. He was riding a BMW, and I have theorized that perhaps the cylinders acted as outriggers or pontoons. So after, four stress-filled laps, I managed to remain upright and finish second. In fact, out of about 12 starters in my class, only two finished! Its usually not too thrilling to see your name listed last on the result sheet, but instead of washing mud off my bike, leathers, and repairing crash damage, I got to prepare for the next day of racing with a fine Italian dinner. Mark Hatten Swingin' Singles Racing AHRMA, WERA #97 Honda FT500 http://members.aol.com/hatman97 ------------------------------ Date: Thu, 24 Apr 1997 16:24:10 -0800 From: "Michael Moore" Subject: Re: VintRR CB350 Honda disc brake >>What year did they first put Disk Brakes on the 350 CB Hondas????<< My Honda MC Identification Guide shows the CB350G with a disc brake. Sell Date 1973, Release date 01/01/73. CB360G is model year 1974. That year also had a CB360K0 with a drum. The Honda single piston brakes were not particularly wonderful units. I'd swap one for a cast iron RD brake in a second. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Thu, 24 Apr 1997 23:12:23 AST From: "Darrell Hingley" Subject: VintRR oversize pistons I have my question for the day. I have a 1975 CB-400F which I race in vintage. I am always looking and thinking ( sometimes too much ), how to make it faster with parts from other models. Now the fun part. I want to use a big bore kit and would like to use pistons from another Honda model ( besides CB-500F ). I was thinking around a 54 or 55 mm Dia. piston would be just about right, with a high dome to aid compression.( the 500 pistons are flat tops). Does anyone know of such a beast?. In additon I found that a piston from a 1989 CB-1 honda has the Dia, ( 55mm ) weight and modern rings I like but the dome is not high enough and the valve recesses are too deep. Has anyone heard or know of someone who can build up the top of a piston so it can be remachined to the needed shape etc. Last but not least Thanks to everyone out there who has replied to my questions in the past, if you have your own ideas on how to make a 400f beat the dreaded two strokes I would love to hear them. And if you ever come accross an old 350f or 400f race part or bike keep me in mind. Long Live the Screaming Fours. Darrell ------------------------------ Date: Thu, 24 Apr 1997 21:28:16 -0800 From: "Michael Moore" Subject: Re: VintRR oversize pistons > I have my question for the day. I have a 1975 CB-400F which I race in > vintage. I am always looking and thinking ( sometimes too much ), how > to make it faster with parts from other models. Now the fun part. I Hello Darrell, Get yourself a Wiseco catalog and start by looking at all the pistons with the same wristpin size. A stock 400 uses a 13mm wrist pin, and as I recall when I bought Carillo rods for the 350/4 racer Craig recommended going up to 14mm on the wrist pin size. The GPZ550 Kawasaki uses a 14mm pin but is a 58mm bore (this is what I use in my CR216 Honda). A stock XR100 piston is 52mm bore with a 14mm wrist pin (what I'm using in the 160 trials bike) and has a flat top with minimal valve notches. A 1mm oversize brings you close to the size you are looking at. There doesn't seem to be a big selection in 14mm wristpin pistons. > want to use a big bore kit and would like to use pistons from another > Honda model ( besides CB-500F ). I was thinking around a 54 or 55 mm > Dia. piston would be just about right, with a high dome to aid > compression.( the 500 pistons are flat tops). Does anyone know of > such a beast?. In additon I found that a piston from a 1989 CB-1 > honda has the Dia, ( 55mm ) weight and modern rings I like but the dome is not > high enough and the valve recesses are too deep. Has anyone heard or > know of someone who can build up the top of a piston so it can be > remachined to the needed shape etc. Last but not least Thanks to A high dome is the LAST thing you want to use, especially one made by welding on a piston. Run a flat top piston and have someone weld up the combustion chamber to get the compression. You'll have less heat losses into the head and piston due to the reduced area, a lighter piston, a shorter flame front, and plenty of squish area between the piston and the head. > everyone out there who has replied to my questions in the past, if > you have your own ideas on how to make a 400f beat the dreaded two > strokes I would love to hear them. And if you ever come accross an > old 350f or 400f race part or bike keep me in mind. Long Live the > Screaming Fours. Darrell You need a good ignition, and start off with somewhat less advance than stock (if you weld up the chamber you'll probably be able to get away with about 28 degrees total advance timing). Don't get suckered into excessively large headpipes - certainly no bigger than 1.25" OD - - and my CR216 runs pretty well with 1" OD pipes. Check around with your local Guzzi riders and get a set of 30mm Dell'Orto carbs. Due to a rule change that I still haven't heard a convincing arguement for, the CR Kei'hins which are historically correct for your bike aren't legal (the no integral-float smooth bore rule). Get some real front forks and shocks, and ditch the Honda disc brake calipers. The frame can benefit from some bracing, and bronze swingarm bushings are also a good idea. If you are building a 500, Craig has told me that in many ways he feels the CB500 is a better way to go than a big bore 400 - but then you've already got a 400. He can do anything you need to get a 400 going quickly - how about a nicely lightened and rebalanced crankshaft to go with the Carillo rods the bike needs to live? Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Fri, 25 Apr 1997 10:26:33 From: Ed Scharnhorst Subject: VintRR Wrenching with Rob I've been trying to use Rob Tuluie's articles from Motorcycle Online to determine if 250 Duc is plumb. One of his measurements, s_r from figures 1 and 3, is not terribly well defined. Has anyone else used his method? What is s_r, vertical height? TIA, Ed Scharnhorst (ducboy@VT.EDU) Always looking for Ducati pushrod & 2-stroke singles parts. '86 fz-600, '61 Ducati 98,'64 Ducati 100,'6? Ducati 160,'6? Ducati 250 It's FrankenSTEEN resting the Smack-quack It's dead Jim Diana wannabe ------------------------------ Date: Fri, 25 Apr 1997 22:13:43 -0800 From: "Michael Moore" Subject: Re: VintRR Wrenching with Rob > I've been trying to use Rob Tuluie's articles from Motorcycle Online to Hello Ed, If you'll send the URL for the page I'll take a look at it. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ End of VintRR-digest V1 #22 *************************** VintRR-digest Monday, April 28 1997 Volume 01 : Number 023 ---------------------------------------------------------------------- Date: Sat, 26 Apr 1997 10:10:01 -0400 (EDT) From: Elin Phinizy Subject: VintRR Re:RD Brakes. >------------------------------ >My Honda MC Identification Guide shows the CB350G with a disc brake. >Sell Date 1973, Release date 01/01/73. > >CB360G is model year 1974. That year also had a CB360K0 with a drum. > >The Honda single piston brakes were not particularly wonderful units. >I'd swap one for a cast iron RD brake in a second. Michael is correct, as even Jim Reed (who wrote a really thorough and excellent series of articles on race preparation of R's/RD's) prefers the stock, cast RD brake. If I remember the articles, the more 'trick' race brake had a bad habit of disintegrating. Once is enough. Anyway, it follows with the 'cheeseburger' theorem. Just eat one less a week, and the weight difference will be compensated for adequately. Some of Reed's recommendations vault the simple and relatively affordable R project into the next $$$ level, but -then- that is a matter of choice just how far one wants to go, literally and figuratively. Of course, one can go nuts and get a 4ls racing drum from Japan or Italy for $500 and going north fast! I have a friend in the next town over who has one of the drum CB 360's. Nice competent little bikes! Jay USCRA#47 ------------------------------ Date: Sat, 26 Apr 1997 07:49:15 -0800 From: "Michael Moore" Subject: Re: VintRR Re:RD Brakes. > Michael is correct, as even Jim Reed (who wrote a really thorough and > excellent series of articles on race preparation of R's/RD's) prefers the > stock, cast RD brake. If I remember the articles, the more 'trick' race > brake had a bad habit of disintegrating. Once is enough. Anyway, it follows Hello Jay, Everything I heard in re the RD vs TZ caliper was that the RD caliper was more rigid in use - the TZ aluminum caliper would flex under heavy use. I saw a number of TZs equipped with the RD caliper instead of the original aluminum unit. My friend Craig made patterns and made some aluminum copies of the RD caliper for a while shortly after the RD came out, but I don't think too many of them were made or sold. The were marked "Grizzly" as his shop was Grizzly Engineering. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Sat, 26 Apr 1997 12:06:57 +0000 From: "Glenn Thomson" Subject: VintRR CF Pushrods - again On 11 Apr 97 at 22:59, YamiRacer@aol.com wrote: > There was a guy in the USCRA who tried them at Daytona one year. They broke > almost immediately (as I heard the story) and ruined his trip. Apparently, > the entire lot of them were defective. > > This was 2 or 3 years ago. I would advise checking for more current info. > > Regards, > > Chris Stein Hi Chris Do you (or anyone else) know what the failure mode was? Glenn msgr@hookup.net Waterloo, Ontario, CANADA ------------------------------ Date: Sat, 26 Apr 1997 15:10:30 From: Ed Scharnhorst Subject: Re: VintRR Wrenching with Rob At 10:13 PM 4/25/97 -0800, you wrote: > >If you'll send the URL for the page I'll take a look at it. > The URL is http://www.motorcycle.com/mo/mcnuts/chassis.html The measurement looks to be the relative vertical height of a given point on the tire. But how can you measure this and be sure your consistent from side to side? It's a nice couple of articles, but I wish Rob would have posted they third installment before leaving M-O. Thanks for the help! Ed Scharnhorst (ducboy@VT.EDU) Always looking for Ducati pushrod & 2-stroke singles parts. '86 fz-600, '61 Ducati 98,'64 Ducati 100,'6? Ducati 160,'6? Ducati 250 It's FrankenSTEEN resting the Smack-quack It's dead Jim Diana wannabe ------------------------------ Date: Sat, 26 Apr 1997 13:10:24 -0800 From: "Michael Moore" Subject: Re: VintRR Wrenching with Rob > The measurement looks to be the relative vertical height of a given point > on the tire. But how can you measure this and be sure your consistent from > side to side? It's a nice couple of articles, but I wish Rob would have > posted they third installment before leaving M-O. Thanks for the help! > Ed Scharnhorst (ducboy@VT.EDU) Ed, the s_r I see is just a true vertical line for use to compare against the top and bottom sides of the wheel to see if the wheel is also vertical. Let me think and see if I can come up with some alternatives for you. Do you have access to a vertical milling machine or something else with a nice flat surface, preferably with a hole or T-slot in it? Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Sat, 26 Apr 1997 18:45:04 -0400 From: Chris Stein Subject: Re: VintRR CF Pushrods - again Glenn Thomson wrote: > > On 11 Apr 97 at 22:59, YamiRacer@aol.com wrote: > > > There was a guy in the USCRA who tried them at Daytona one year. They broke > > almost immediately (as I heard the story) and ruined his trip. Apparently, > > the entire lot of them were defective. > > > > This was 2 or 3 years ago. I would advise checking for more current info. > > > > Regards, > > > > Chris Stein > > Hi Chris > Do you (or anyone else) know what the failure mode was? > > Glenn > msgr@hookup.net > Waterloo, Ontario, CANADA Glenn - No idea as to the specific technical issues involved. However, my first race is next weekend at Loudon. If the individual is there, I will ask him and let you know. The tuner's name is Seppo Suovo. Greg Nichols was riding for him. You may know one or both of them. Regards, Chris ------------------------------ Date: Sat, 26 Apr 1997 18:55:35 -0400 From: Chris Stein Subject: Re: VintRR Re:RD Brakes. I agree with Michael. The TZ 750 racing service manager at the Yam shop where I worked replaced his alloy bodied calipers with stock RD units due to flexing. Chris ------------------------------ Date: Mon, 28 Apr 1997 15:02:00 -0400 From: John.Martin@fluordaniel.com Subject: VintRR 90 deg norton crank I am cosidering building a 90 deg Norton crank using the existing journals bolted to a new self made flywheel, anybody out there been this route or any suggestions? I will have to cut & rotate one half of the camshaft 45 deg & modify the Boyer pick up plate &/or magnet rotor as well. Anything else? ------------------------------ End of VintRR-digest V1 #23 *************************** VintRR-digest Wednesday, April 30 1997 Volume 01 : Number 024 ---------------------------------------------------------------------- Date: Mon, 28 Apr 97 13:57:53 -0500 From: "Raymond P. Farrell" Subject: VintRR Tire questions Hello people, I have a couple of questions, hopefully, they are not too neophytish. The first is, what do racers use to balance your tires? I have been using lead solder successfully for my street bikes and can't think of a reason not to use it on my (still being put together) 750 Norton, to be used as an AHRMA racer. Any comments? The second is mostly just a point of discussion. John Goodpaster wrote in the April issue of Vintage News to use metal valve caps that have the rubber gaskets in them. Evidently, some metal valve caps do not have the rubber gaskets and at speed the valve stem collapses and permits air to escape past the valve cap and without a sealing washer, causes a flat tire. Wow! That is hard for me to believe, although coming from John G., I surely can't argue. Any comments? Any tube brands to stay away from, or good tube brands to buy? That's all the questions for now. Thanks everybody, Ray Farrell ------------------------------ Date: Wed, 30 Apr 1997 05:35:45 -0400 From: tharris@nornet.on.ca (Tim Harris ) Subject: VintRR 350 Honda Found my 350 Honda today.... A 1971 Model... What I need now is a Canadian Source of things like Clip-Ons, Exhaust, Rear Sets etc... Anybody out there help me???? Also does anybody have a scanned image of a typical CB 350 racer decked out in Period 1 fasion they could e-mail me.... Thanks Tim Harris Tim's Euro-Passions http://www.nornet.on.ca/~tharris/ 1972 Ducati 750 GT Imola Cafe Racer 1975 Ducati 860 GT 1985 BMW K75 1988 Yamaha 250cc Virago "Route 66" 1990 Honda Hawk GT ------------------------------ End of VintRR-digest V1 #24 *************************** VintRR-digest Friday, May 2 1997 Volume 01 : Number 025 ---------------------------------------------------------------------- Date: Tue, 29 Apr 1997 18:40:23 -0400 From: tharris@nornet.on.ca (Tim Harris ) Subject: VintRR 350 Honda Found my 350 Honda today.... A 1971 Model... What I need now is a Canadian Source of things like Clip-Ons, Exhaust, Rear Sets etc... Anybody out there help me???? Also does anybody have a scanned image of a typical CB 350 racer decked out in Period 1 fasion they could e-mail me.... Thanks Tim Harris Tim's Euro-Passions http://www.nornet.on.ca/~tharris/ 1972 Ducati 750 GT Imola Cafe Racer 1975 Ducati 860 GT 1985 BMW K75 1988 Yamaha 250cc Virago "Route 66" 1990 Honda Hawk GT ------------------------------ Date: Tue, 29 Apr 1997 8:16:00 -0400 From: John.Martin@fluordaniel.com Subject: VintRR 90 Deg Norton crank Thanks for all the replies so far, but nothing substantial, One person has already gone this route Brian Tyree, & another with a 60 Deg crank, both who I shall contact personally. The reason for 90 & not 180 is that when the pistons reach TDC or BTC they want to stop, with a 90 Deg crank one piston is nearly at its maximum speed & this stopping action will be reduced (Phil Vincent suggests 76 deg, but this depends on the stroke of the engine, when the rod is at right angles to the crank). An added bonus is that all the secondary forces are canceled out (they occur at twice crankshaft revs in different directions with a 90 Deg crank). Yes I know there will be some rocking couples, but I dont even know where to start in canceling them out, but I'm sure they are a lot less that a 750/830/920 parallel twin! I am thinking of a balance factor of 50% & the engine will be mounted in a featherbed frame, the isolastics only work in a one directional plane (up/down front/back) not with rocking couples. Please keep the ideas coming. ------------------------------ Date: Mon, 28 Apr 1997 18:50:39 -0500 (CDT) From: "\"Colin R. Sharpe\"" Subject: VintRR Re: 90 deg norton crank On Mon, 28 Apr 1997 John.Martin@fluordaniel.com wrote: > I am cosidering building a 90 deg Norton crank using the existing > journals bolted to a new self made flywheel, anybody out there been > this route or any suggestions? > I will have to cut & rotate one half of the camshaft 45 deg & modify > the Boyer pick up plate &/or magnet rotor as well. Anything else? > Why 90 degs? I would have thought a 180 deg crank would have offered a smoother ride. Didn't the early Jap twins have this set up? This has all the hallmarks of being the most interesting discussion on the list in a while...... English. ------------------------------ Date: Mon, 28 Apr 1997 13:56:31 -0700 From: DONALD MACPHAIL Subject: Re: VintRR oversize pistons Darrell Hingley wrote: > > I have my question for the day. I have a 1975 CB-400F which I race in > vintage. I am always looking and thinking ( sometimes too much ), how > to make it faster with parts from other models. Now the fun part. I > want to use a big bore kit and would like to use pistons from another > Honda model ( besides CB-500F ). I was thinking around a 54 or 55 mm > Dia. piston would be just about right, with a high dome to aid > compression.( the 500 pistons are flat tops). Does anyone know of > such a beast?. In additon I found that a piston from a 1989 CB-1 > honda has the Dia, ( 55mm ) weight and modern rings I like but the dome is not > high enough and the valve recesses are too deep. Has anyone heard or > know of someone who can build up the top of a piston so it can be > remachined to the needed shape etc. Last but not least Thanks to > everyone out there who has replied to my questions in the past, if > you have your own ideas on how to make a 400f beat the dreaded two > strokes I would love to hear them. And if you ever come accross an > old 350f or 400f race part or bike keep me in mind. Long Live the > Screaming Fours. Darrell I may be some what off here but it could pay off to look at small bore Honda single dirt bikes as donors - some very fast 500/4's were built around these or old twins like 150 160 cb72 77 where you may find more domed pistons than in Honda fours - it 's not neccessarily an answer more of another question - don ------------------------------ Date: Wed, 30 Apr 1997 16:43:26 AST From: "Darrell Hingley" Subject: VintRR oversize pistons Don, thanks for the tip, you maybe very right. Ther was a 400 racer built in England not too long ago and they used pistons from a 125 single, the problem is that I do not think this was a model that was ever imported into this country or the U.S.. Darrell. To the person building the 350 Honda twin racer, the best place I know of for race parts for the twin would be Todd Henning in Boston he has great pipes pistons etc. etc.. The worst part will be the cost I am afraid, but if you would like his address and phone number I will pass it along if you would like it. #62 AMCRA ------------------------------ Date: Tue, 29 Apr 1997 20:36:40 -0800 From: "Michael Moore" Subject: VintRR Willow Springs AHRMA races Did anyone go to Willow Springs, and if so would you be willing to post a report to the list on the weekend's activities? Thanks, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Wed, 30 Apr 1997 15:15:28 -0400 From: Ellis_Holman Subject: Re: VintRR oversize pistons > Honda single dirt bikes as donors - some very fast 500/4's were built > around these > or old twins like 150 160 cb72 77 where you may find more domed pistons > than in Honda fours - it 's not neccessarily an answer more of another > question - don > > Not sure about deck highth, wrist pin size, ect. But, the 125 twin piston might be a way to go on this. The CB72 piston size is 54 MM, very early CB72's used a 10.5 compression ratio. Ellis ------------------------------ Date: Wed, 30 Apr 1997 19:08:46 -0400 (EDT) From: Elin Phinizy Subject: VintRR Re:Tubes, &c. Hello Ray. I will try to get Seppo Souvo's address & phone # for you or maybe Chris can remember. Seppo has set up some of the most ferocious, track-scratching Nortons I have seen. He has a 750 that Greg Nichols rides; while Greg is an excellent, aggressive rider, that Norton can burn up the track and hold its own with anyone. As far as I can remember it has a 5v close ratio gear box and the usual and unusual mods. Maybe John Goodpaster has some suggestions re Nortons. As for tubes... the best is the cheapest in the long run. If you are going to flail yourself and this road hungry Norton what's a few $$$ versus your life. I have always used top brand stuff even on the street... Avon, Dunlop, Michelin, etc. I am relatively new to recent vintage racing but did alot of spec. before I got started & have seen various approaches, when it comes to weights. If you use the self-sticking rim weights, cover them with a bit of >>>>good quality <<<<< racing tape. If you use crimp/spoke weights either girdle them with lockwire or a bit of racing tape or both, both is nice. The trick appears to be making sure they remain on the bike vs. the track. Per weights, John G. would know best or Chris Stein who used to tech bikes... I used to do alot of dirt-biking years ago; I even lock wire the spokes to each-other where they intersect. While I don't go really fast, I feel just that bit more secure. Being anal works just fine. JC Whitney's sells a very acceptable pair lock-wire pliers for around $20.00 Good Luck & have a blast. Nortons are absolutely neat bikes. They look and sound wonderful throbbing around the track. The roadholder fork may be 'old hat', but it really does a good job. Jay USCRA #47 ------------------------------ Date: Wed, 30 Apr 1997 20:11:30 -0400 (EDT) From: "'Teflon'" Subject: Re: VintRR 350 Honda >Found my 350 Honda today.... >A 1971 Model... > >What I need now is a Canadian Source of things like >Clip-Ons, Exhaust, Rear Sets etc... > >Anybody out there help me???? > An excellent exhaust builder(F1200/1600/2000, Stock car, vintage & modern bike) is Wolf Racing in Cambridge. Gary used to mass produce those Wolf headers in the early eighties. He's made quite a few pipes for some pretty fast 350's (including Todd Henning's). If you're at any of the races you'll see them. Clip-ons for smaller fork diameters can be found through Waldridge Motors in London(he specializes in british bikes but is a good source for vintage stuff like tires, aluminum rims, ignitions, shocks etc.)- matchless@std.net I run a '72 350 in Period 2. It was period 1 legal in '95 when you were allowed modified motors. I still use a Suzuki T-500 drum with Forodo linings-it works better than a lot of disks! ,-------------------------------, | Dave "Teflon" Thompson | | teflon@golden.net | | http://www.golden.net/~teflon | `-------------------------------` ------------------------------ Date: Wed, 30 Apr 1997 19:43:33 +0100 From: John Goodpaster Subject: VintRR Valve cores >The second is mostly just a point of discussion. John Goodpaster wrote in >the April issue of Vintage News to use metal valve caps that have the rubber >gaskets in them. Evidently, some metal valve caps do not have the rubber >gaskets and at speed the valve stem collapses and permits air to escape past >the valve cap and without a sealing washer, causes a flat tire. Wow! That >is hard for me to believe, although coming from John G., I surely can't >argue. Any comments? Any tube brands to stay away from, or good tube >brands to buy? Frankly I do not see how something that weighs less then a gram, held by a spring and 30 psi behind it can be forced open. I can only assume that the spring is weak. I do know that the weight increases due to the centrifcal force and then becomes much heavier overcoming the spring tension. The valve cores with the internal spring seem to be stronger. I think Metzler, Continental, Michellen and Dunlop tubes are the best. They cost more then the others but are very good quality > >The first is, what do racers use to balance your tires? I have been using >lead solder successfully for my street bikes and can't think of a reason not >to use it on my (still being put together) 750 Norton, to be used as an >AHRMA racer. Any comments? No problem useing solder just tape over a bit to keep the weight in place............. John Goodpaster AHRMA ------------------------------ Date: Wed, 30 Apr 1997 18:05:07 -0800 From: "Michael Moore" Subject: VintRR ISP difficulties for the lists My ISP (Sirius) had the mail server crash and out of service all last night, so that is why some of you didn't see any traffic on the lists for awhile. They say that no mail was lost - only delayed. Sorry for the interruption in service. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Thu, 1 May 1997 09:36:14 -0400 (EDT) From: bc180@freenet.carleton.ca (Peter Alan Engelbert) Subject: Re: VintRR 350 Honda > >Found my 350 Honda today.... >A 1971 Model... > >What I need now is a Canadian Source of things like >Clip-Ons, Exhaust, Rear Sets etc... > >Anybody out there help me???? > >Also does anybody have a scanned image of a typical >CB 350 racer decked out in Period 1 fasion they could e-mail me.... > >Thanks >Tim Harris Tim's Euro-Passions http://www.nornet.on.ca/~tharris/ Try Walridge Motors in Hyde Park, Ontario. They are primarily a supplier for Brit bike parts but have clipons etc in their catalogue. They can also get Swarbrick exhaust systems from England. (519) 641-2770. Check out last month's Cycle Canada for an article on vintage racing with lots of pictures to show you what the bikes look like. If you're near Toronto, Jammie Cummings has just finished a nice CB350. He would certainly let you have a look at it. (416)264-2960. I made my own megas out of the original mufflers then sanded down the chrome and painted them black. They work very well. A pair of Swarbricks for my bike costs $220 CDN. Those are next on my list to purchase. BTW I took the new engine (CB450) that I built over the winter out to Shannonville last weekend for the test days. Apart from a few small gliches it ran great. Took it easy all day breaking it in then let it rip down the back straight at the end of the day. Stayed with a CB750 the whole way down the straight. YeeeeeeeeeHaaaaaaaaa. - -- Peter Alan Engelbert: bc180@Freenet.Carleton.CA or mariner@istar.ca God does not subtract from the span of a person's years on this earth the time spent vintage racing. ------------------------------ Date: Fri, 02 May 1997 07:58:44 -0400 From: John Markowski Subject: VintRR Tommaselli Clipons for Sale For Sale Tommaselli "racing professionals" Clipons (marked on box as Item 231) Will fit 35 mm forks with reducers for 30-32-33 forks fitted to a bike years ago but never used. In very good condition $ 50.00 plus freight I will UPS COD. Please e-mail me at john_markowski@brushwellman.com ------------------------------ End of VintRR-digest V1 #25 *************************** VintRR-digest Saturday, May 3 1997 Volume 01 : Number 026 ---------------------------------------------------------------------- Date: Fri, 2 May 1997 05:09:26 -0800 From: "Michael Moore" Subject: Re: VintRR Tommaselli Clipons for Sale > Tommaselli "racing professionals" Clipons (marked on box as Item 231) > $ 50.00 plus freight I will UPS COD. > > Please e-mail me at john_markowski@brushwellman.com For anyone who is interested I think this is a pretty good price, as a friend of mine has paid similar prices for used clipons at swapmeets. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Fri, 2 May 1997 7:14:00 -0400 From: John.Martin@fluordaniel.com Subject: VintRR Jokes to amuse you, hopefully >Friday we ran this short story: > >This is the result of a programmer who didn't check his >spelling before releasing the product. The prompt in >the software reads: > >"Please insert dick in Drive A and hit enter to continue....." >---- >In response to that I received this from a loyal reader of >Joke A Day: > >"Back in the 70's I worked for Honeywell doing some of the >liason work with NEC, in particular polishing up the >documentation from Jinglish to English. > >"At one point during the introduction of the then new, >NEC-100 I received a 12-page document extolling the virtues >of hard dicks over the limitations of floppy dicks. > >"Another piece of software was called a 'File Fondler'. I >objected to Tokyo and suggested it be called a 'File >Handler'. Tokyo then telexed back (that dates it, doesn't it?) >ask for "perceived difference between verb 'to fondle" and >verb 'to handle'". My response was "difference is one of >intent". No more questions followed." ______________________________________________ A man decided to call home to see how his wife was doing. A strange woman answered the phone. He immediately asked the woman "Who are you?" The woman replied "I'm the maid". "But we don't have a maid" the man said. "Oh, I was hired this morning by the lady of the house". "O.K, where is the lady of the house?". "Who wants to know?" asked the maid. "This is the man of the house" "Well, she just went upstairs with a man I thought WAS the man of the house". The man, now furious asked the maid if she wanted to make a quick $5000, she agreed and asked him what she had to do. He told her to go into the den and find his gun. He said "I want you to shoot that bitch and the bastard she's with". The maid put the phone down and the man heard two shots fired. The maid came back and asked him what she should do with the bodies. He told her to put them in a garbage bag and dump them in the swimming pool. She said "But we don't have a swimming pool." There was a long pause and then the man finally said "Uh, is this 237-6547? ----------------------------------------------------------------- One day a nun was fishing at a river and caught a large fish. A man was walking by and said, "WOW!! What a nice Gauddam Fish!" The sister said, "Sir, you shouldn't use God's name in vain." The man said, "But that's the SPECIES of the fish --- a Gauddam Fish." The sister said, "Oh, ok." She took the fish back home and said, "Mother Superior, look at the Gauddam Fish I caught." Shocked, the Mother Superior said, "Sister, you know better than that." The nun said, "That's the species of it --- a Gauddam Fish." So the Mother Superior said, "Well, give me the Gauddam Fish and I'll clean it." While she was cleaning the fish, Monsignor walked in and Mother Superior said, "Monsignor, look at the Gauddam Fish that the sister caught." Nearly fainting, Monsignor said, "Mother Superior, you shouldn"t talk like that!" Mother Superior said, "But that's the species of it --- a Gauddam Fish." Monsignor said, "Well give me the Gauddam Fish and I'll cook it." That evening at supper there was a new priest at the table, and he said, "Wow, what a nice fish." In reply, the sister said, "Thank-you, I caught the Gauddam Fish." And Mother Superior said, "I cleaned the Gauddam Fish." And Monsignor said, "I cooked the Gauddam Fish." The priest looked around in disbelief, quite shocked, and said... "I LIKE THIS FUCKING PLACE ALREADY!" >_________________________________________________ > >Three cowboys are sitting around a campfire, out on the >lonesome prairie, each with the bravado for which cowboys >are famous. A night of tall tales begins. > >The first says, "I must be the meanest, toughest cowboy >there is. Why, just the other day, a bull got loose in the corral >and gored six men before I wrestled it to the ground, by the >horns, with my bare hands." > >The second can't stand to be bested. "Why that's nothing. I >was walking down the trail yesterday and a fifteen foot rattler >slid out from under a rock and made a move for me. I grabbed >that snake with my bare hands, bit its head off, and sucked >the poison down in one gulp. And I'm still here today." > >The third cowboy remained silent, slowly stirring the coals >with his penis. > ___________________________ There is this American tourist on a trip around Ireland. When the tour arrives at Belfast he decides to go for a stroll with the aim of taking in this new culture. After he's been walking for a while someone rushes up behind him and sticks a gun in his back. The person says to the tourist, "What religion are you?" The American thinks to himself "Great--if I say I'm Catholic, this guy is sure to be Protestant. If I say I'm Protestant, he's sure to be Catholic. Either way I'm dead." Then he has a brain wave and says to the guy, "Actually I'm Jewish." This, he thinks to himself, will surely keep him safe. The guy behind him then replies "Gee, I must be the luckiest Arab in Ireland." -------------------------------------------------------------- > >Two young guys were picked up by the cops for smoking >dope and appeared in court on Friday before the judge. The >judge said, "You seem like nice young men, and I'd like to >give you a second chance rather than jail time. I want you to >go out this weekend and try to show others the evils of drug >use and get them to give up drugs forever. I'll see you back in >court Monday." > >Monday, the two guys were in court, and the judge said to the >1st one, "How did you do over the weekend?" "Well, your honor, >I persuaded 17 people to give up drugs forever." "17 people? >That's wonderful. What did you tell them?" > >"I used a diagram, your honor. I drew two circles like this... > _ > / \ > | | O > \ _ / > > >and told them this (the big circle) is your brain before drugs and this (small circle) is your brain after drugs." "That's admirable," said the judge. > >"And you, how did you do?"(to the 2nd boy) "Well, your honor, I persuaded 156 people to give up drugs forever." "156 people! That's amazing! How did you manage to do that!" "Well, I used a similar approach. (draws two circles) > _ > / \ > O | | > \ _ / > > >I said (pointing to the small circle) "this is your asshole before prison ..." > > ------------------------------------------------------- > Hale-Bopp inspired Bumper Sticker: > So Many Stupid People; So Few Comets > ____________________________________________ > A professor, teaching a college sexuality class, was > discussing the wide variety of frequency-of-sex that could > still be considered normal. > > "Many people find that sex every other week is sufficient > frequency to satisfy -- and that's fine. Yet others want to make > love nightly--and there's nothing wrong with that either. > Let's take an informal survey of this class. Don't be embarrassed. Please answer honestly. How many people here make love more than twice a week?" A few hands shot up. "Twice a week?" A few more hands. > > "Weekly, on average?" Many hands. "Once every two weeks?" he continued, and "Once a month?" and "Once every several months?" and finally, "Once a year?" > At this last category, one hand shot up, waving most eagerly. > "Pardon my curiosity," the professor asked, "but if you only make love once a year, why are you so excited over it?" > > Replied the student, "Tonight's the night!" > > _________________________________ From "Ann Landers" column. This is an actual quote from a kid's answer on a science test: > > "You can listen to thunder and tell how close you came to > getting hit. If you don't hear it, you got hit, so never mind." ____________________________________________ The teacher had given the class an assignment. He stresses the importance of this particular assignment, and that no excuses will be accepted except illness (with a medical certificate) or a death in the immediate family (with a note from that member). A smart-ass student pipes up "What about extreme sexual exhaustion, sir?" The class breaks up laughing, and when they settle down the teacher responds with "Well, I guess you'll have to learn to write with your other hand." > > ______________________________________ > ------------------------------ Date: Fri, 02 May 1997 22:03:20 -0400 From: Ellis_Holman Subject: VintRR Vintage bike stands Anyone know where I can lay hands on a stand for the CR93 or a good replica. Honda used to sell these as an accessory. Thanks Ellis ------------------------------ Date: Sat, 3 May 1997 21:04:53 -0800 From: "Michael Moore" Subject: VintRR Read it and weep While going through some old Cycle World magazines just now the classified ads in the April 1968 issue caught my eye. First, we've got a 1600cc Vincent dragster with 24 carat gold plated frame for $2000. The same party also has a chromed Vincent road bike with spare engine for $800. Nest is a Ducati 175cc F3 bike - latest five speed built in 1962 for the German distributor. With less than 10 races and many spares - $800 or nearest offer. 1961 AJS 7R, excellent condition, Peel fairing, new tires and spares - - $750. 1950 Vincent Comet 500cc single. Completely rebuilt from ground up to better than new condition. A true classic at $150. 1966 HD Sprint/CRTT road racer. Never been dropped, excellent original condition - $750. Last but far from least is a Honda CR93 125cc ACA GP 1967 champion. Extra crankshaft, valves, gears, etc. $650. Boo hoo hoo. Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ End of VintRR-digest V1 #26 *************************** VintRR-digest Monday, May 5 1997 Volume 01 : Number 027 ---------------------------------------------------------------------- Date: Sat, 03 May 1997 23:29:16 -0400 From: Ellis_Holman Subject: Re: VintRR Read it and weep > While going through some old Cycle World magazines just now the > classified ads in the April 1968 issue caught my eye. > > > And then there was the Honda ad for 1962 offering a CR110 in full street gear for a mere $2000.00. Ellis ------------------------------ Date: Sat, 3 May 1997 21:43:25 -0800 From: "Michael Moore" Subject: Re: VintRR Read it and weep > And then there was the Honda ad for 1962 offering a CR110 in full street > gear for a mere $2000.00. Ellis My friend Peter has one of the CR110 street bikes - rough condition though. The most interesting thing is that it came in "street scrambler" trim, with a nice off-road high pipe. Just the thing for your 8 speed DOHC 4 valve 50cc bike. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Sat, 3 May 1997 22:14:59 -0800 From: "Michael Moore" Subject: VintRR A REALLY dedicated racer Mario Columbo's "Moto Guzzi" has a somewhat macabre story about the pre and post-war Guzzi racer Omobono Tenni, a racer who's riding style seemed to defy the laws of physics (as did his ability to survive some lurid crashes). I'll paraphrase some comments from the book: An interesting anecdote involved a crash during practice at the Circuito del Lario. Tenni had to go off the road into a ditch in order to avoid colliding with a horse and cart (obviously an open roads course). There he remained until worried race stewards mounted a search for him. He was found half-unconscious with pain, groping around in the grass for bits of his finger bones, which he was placing in a handkerchief convinced that the doctors would have been able to put the bits together again. Another escapade occured at the 1935 Isle of Man TT. During practice while steaming down Bray Hill on the 500cc wide-angle Guzzi V-twin he strayed too far to the left and wound up in a ditch, but he blithely carried on for twenty or thirty yards before he got the bike back on the road under the horrified gaze of the spectators, all of whom were convinced that he was bound to break his neck. ".... I could have got her back on the road sooner", he was to say afterwards, "but seeing I was in there I thought i might as well see how well she handled off the road . . .". Another competitor who had been following him told the press that Tenni had shaved the embankment so close that he had torn out lumps of earth with the handlebars. I think I'll play things a bit safer on the track, thanks very much. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Sat, 3 May 1997 22:14:59 -0800 From: "Michael Moore" Subject: VintRR Vintage Racer Nicknames One of the magazines I looked at tonight mentioned that Italian works rider Gilberto Milani had the nickname "Old Elbow". John Cooper was known as "Mooneyes" as he had a set of them on his helmet (he must have known a US hot rodder). Of course, there was Dick "Bugsy" Mann and David "Rubberman" Aldana. I think that Renzo Pasolini may have had the nickname "Knees" from his knees-out riding style. Anyone else recall some interesting nicknames? Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Sun, 4 May 1997 12:49:29 -0800 From: "Michael Moore" Subject: VintRR More Pictures I've been scanning away this morning, so here are the latest additions to the web site: A picture of a Marly Drixyl-chassised CB72 Honda road racer. A great action shot of Joel Robert on a twin-pipe CZ motocrosser. An engine blueprint for a Bridgestone 175 rotary valve twin. The articles that Gordon Jennings did for Cycle World on building a 250 Ducati road racer. They are all available from links on the graphics page. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Sun, 4 May 1997 13:50:35 -0800 From: "Michael Moore" Subject: VintRR A couple more photos I also added shots of Tony Foale's spine-framed Moto Guzzi with floating gearcase. The links are in Tony's section on the graphics page. Cheers, Michae Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ Date: Mon, 5 May 1997 19:57:25 -0400 (EDT) From: Bevel250@aol.com Subject: VintRR Clip Ons I am interested in the clip ons. I would like to use my existing controls which fit on 22mm bars. If the clip ons have 22mm bars I will take them. I am planning to use them on my Ducati/Mototrans 250 which has 35mm forks. Let me know if they will work. Thanks David Flynn ------------------------------ End of VintRR-digest V1 #27 *************************** VintRR-digest Wednesday, May 7 1997 Volume 01 : Number 028 ---------------------------------------------------------------------- Date: Mon, 5 May 1997 20:56:33 -1000 From: bsagsdgw@maui.net (Webster Family) Subject: Re: VintRR Tommaselli Clipons for Sale Dear John, If the Tomaslli's are still for sale, send them to me COD . David Webster 1094 Kokomo Rd Haiku, Hi.96708 TIA Aloha Dave David Webster Maui, Hawaii ------------------------------ Date: Tue, 6 May 1997 10:56:37 -0400 (EDT) From: Elin Phinizy Subject: VintRR Loudon Well USCRA held its first event of the season, 5/3/97 & 5/4/97, in conjunction with the LRRS. It rained a good portion of the time, but Sunday blew clear. As always, the track was well managed and well run by the US Marshals - no surprise. On Saturday, I raced with a few other stalwarts (I come from a place where the men are men and the sheep are nervous!) - the last turn onto the oval - down. It was slicker than ice just wet from a Zamboni; there went the new rain suit, crunched clutch lever, a few file job motifs on the left points cover &c., and a bent shifter - got lucky. Some people had the great sense to remain garaged. Sunday was much more fun. I finally have sorted out the jetting - no mean feat for a 4-stroke person. The only unfortunate incident was that Chris Stein droped his verrry, verry lovely ice-blue RD 350 into Turn #3, It is perhaps one of the more attractive racers I have seen - -. It was a treat to be garaged with such a lovely bike. He is an absolutely spotless rider, so a double shame. I went by wanting to stop and commiserate ( real competetive, hunh!). Turn three comes off the oval and switches right up a rather steep incline. It's quite fun, but it seemed to eat several bikes this weekend, being the turn of choice for such things. I had a great time dicing with a Norton Commando (there were several waves/classes at the same time). Riding a Commando on the street, I just knew where he was going to torque out. The little R-5 was great in the corners and ok on the straights, but the Norton was a champ on an uphill pull. If any of you classic racers from other parts of the country want to have fun, come join us at Loudon in June for the two classic events. The sidecar race is always fun to observe. I am now off to a of dog-show - talk about cutthroat and competetive. Jay ------------------------------ Date: Tue, 6 May 1997 14:54:46 -0400 (EDT) From: Wilcon@aol.com Subject: Re: VintRR Tommaselli Clipons for Sale John, If you still have them I'll take them. Will Connelly 4215 S 12 Street Omaha, NE 68104 Would be interested in matching controls and a Magura throttle as well. (350 Demo VintRR upgrade) ------------------------------ Date: Tue, 6 May 1997 19:13:32 +0000 From: "Glenn Thomson" Subject: VintRR Tow Cars Okay, not quite. I know I 'm going to be looking for a new truck by the end of the summer, and a minivan seemed to fit the bill. Then somebody told me that bikes won't fit in most of them. So either I tried to load bikes on to all I could borrow, or I asked the folks on these lists. Guess which? So the questions are: Which minivans will take racebikes? streetbikes? Unless there is something that everybody needs to know, e-mail me directly to reduce the load on the lists. If there is any interest, I'll summarize the results. Thanks in advance, Glenn msgr@hookup.net Waterloo, Ontario, CANADA ------------------------------ Date: Wed, 07 May 1997 08:25:51 -0400 From: Ellis_Holman Subject: VintRR Seat covering Anyone have any thoughts on a pattern for the seat cover for a CR72? I know the original material was a synthetic suede, and I know that the original patern was pleated, but down't know the exact pattern. Ellis ------------------------------ End of VintRR-digest V1 #28 *************************** VintRR-digest Thursday, May 8 1997 Volume 01 : Number 029 ---------------------------------------------------------------------- Date: Wed, 07 May 1997 10:25:27 From: Ed Scharnhorst Subject: VintRR Rusted scha-wing-arm A friend of mine sent me this question. It not _really_ related to the vintage list, but he thought someone may have run across it before. I've got the same problem with my spare 250 Ducati frame. We've both tried the heat-the-crap-out-of-it route with no success. If this is too far outside the list, I'd be happy to take it to private e-mail. >From: Chris_Eklund@vapower.com >Ed, could you post something to the vintage list >for me? You know my friggen CR125 swing arm pivot bolt is rusted to the >swing arm bushings. Lord knows, this must be a regular vintage occurrence >so I figured they might know how to get it out. I'm reluctant to post it >to the race list since there seems to be a lot of cannon fodder and not >much discussion on racing, and my dirt bike repair would be a stretch. >Clayton Oliver told me that he had read something in an old cycle world >about connecting an arch welder to each end of the pivot bolt, turning the >welder on momentarily then off again, to break the rust bonds. Is this >possible? I'd really be screwed if it welded in there! Ed Scharnhorst (ducboy@VT.EDU) Always looking for Ducati pushrod & 2-stroke singles parts. '86 fz-600, '61 Ducati 98,'64 Ducati 100,'6? Ducati 160,'6? Ducati 250 It's FrankenSTEEN resting the Smack-quack It's dead Jim Diana wannabe ------------------------------ Date: Wed, 07 May 1997 16:53:00 -0700 From: DONALD MACPHAIL Subject: Re: VintRR Tow Cars Glenn Thomson wrote: > > Okay, not quite. > > I know I 'm going to be looking for a new truck by the end of the summer, > and a minivan seemed to fit the bill. Then somebody told me that bikes > won't fit in most of them. So either I tried to load bikes on to all I > could borrow, or I asked the folks on these lists. Guess which? > > So the questions are: Which minivans will take racebikes? streetbikes? > > Unless there is something that everybody needs to know, e-mail me directly > to reduce the load on the lists. If there is any interest, I'll summarize > the results. > > Thanks in advance, > > Glenn > msgr@hookup.net > Waterloo, Ontario, CANADA If you must have a small van - Astro/Safari get my vote used one for 4yrs - best load carrier -tow rating- prob worst mileage -- give aerostar 2nd place a friend used one for years - overhead door is a drag - carries less load - gets better mmileage - we both use full size now Your mileage may vary - don ------------------------------ Date: Wed, 07 May 1997 22:19:04 -0400 From: Chris Stein Subject: Re: VintRR Tow Cars A friend used to put his BSA b-50 roadracer in his Ford Aerostar. The front wheel of the bike came forward almost between the driver's seat, but it did work. Personally, I think you can't beat a full sized Ford window van. Chris ------------------------------ Date: Thu, 8 May 1997 13:10:00 -0400 From: John.Martin@fluordaniel.com Subject: VintRR Friday (thurs.) Funny: From the strange and bizarre world of real life: ------------------------------------------------------------ Here are some highlights of ER admissions to Chicago General over the past year: - A 28-year old male was brought into the ER after an attempted suicide. The man had swallowed several nitroglycerin pills and a fifth of vodka. When asked about the bruises about his head and chest he said that they were from him ramming himself into the wall in an attempt to make the nitroglycerin explode. - A woman with shortness on breath and who weighted approximately 500 lbs was dragged into the ER on a tarp by six firemen. While trying to undress the lady, an asthma inhaler fell out of one of the folds under her arm. After an X-ray showed a round mass on the left side of her chest her massive left breast was lifted to find a shiny new dime. And last, but not least-- during a pelvic exam a TV remote control was discovered in one of the folds of her crotch. She became known as "The Human Couch". - The most nonemergent ER visit: A male adolescent came in at 2 a.m. with a complaint of belly button lint. - A 92-year old woman had a full cardiac arrest at home and was rushed to the hospital. After 30 minutes of unsuccessful resuscitation attempts the old lady was pronounced dead. The doctor went to tell the lady's 78-year old daughter that her mother didn't make it. "Didn't make it? Where could they be? She left in the ambulance forty-five minutes ago!" - A 15-year old boy was laying on a stretcher with his mother sitting next to him. The boy was coming down from "crank" (methamphetamine) that he had injected into his veins with needles he had been sharing with his friends. Concerned about this the doctor asked the boy if there was anything he might have been doing that put him at risk for AIDS. The boy thought for a while then said questioningly "You mean like having sex with our dog?" - A 19-year old female was asked why she was in the ER. She said that she and her boyfriend were having sex and the condom came off and she wasn't able to retrieve it with her fingers. She went to the bathroom and "gagged myself to vomit but couldn't vomit it up either." --------------------------------------------------------- ** DISCLAIMER ** None of the jokes posted are in any way intended to insult or offend any person/place/race/creed or sex. The jokes posted in no way represent my views or those of the company I work for. The jokes posted may contain rude or inappropriate words and/or content - parental guidance is advised. The issuer of jokes is not responsible for any hysterical laughter, headaches, vomiting or seizures cause by the above. ------------------------------ End of VintRR-digest V1 #29 *************************** VintRR-digest Sunday, May 11 1997 Volume 01 : Number 030 ---------------------------------------------------------------------- Date: 09 May 97 11:27:32 EDT From: Mark Hatten <102136.3317@CompuServe.COM> Subject: VintRR Summit AHRMA report Hey folks: Here's my race report from the AHRMA Summit Point race this past weekend. I know, I know, a Honda Ascot isn't *exactly* a vintage bike, but it WAS a vintage bike race, and the traffic's been pretty light on this list, so here it goes: SUMMIT POINT, WV -- The AHRMA road show rode into town here just one week following the AHRMA Willow Springs race in Southern California. Turnout seemed lighter than usual, although that may be more attributable to Summit Point's "stellar" reputation in the racing community than the bi-coastal scheduling. My previous trip to Summit a few weeks back had taught me all you need to know about Summit -- don't get off the concrete patches in the corners, and pray it doesn't rain. Saturday dawned breezy and cool. The weather forecasts were iffy, and, coupled with my four hours of sleep in the passenger seat of the van, I wasn't feeling too chipper. Dennis, our buddy from DC, showed up with his Krups cappuccino maker, and a double mochaccino got things looking up. Morning practice sessions showed the track to be slick (imagine that), and my times were a few seconds off my race times of three weeks back. Racing on the "rain groves" through third-gear Turn 9 and fourth-gear Turn 10 was an eye-opening experience, as the Mighty Ascot (tm) slid and shimmied on the cold track. Of course, the other riders were racing on the same track, and everyone seemed a bit bewildered. As my race grid was posted, I noticed I was gridded on the second row, despite my points. I whined a bit to the race officials, and was met with a shoulder shrug and a "oh well." Apparently, AHRMA's computer crashed, so grids were filled out by the "braille" method. (Note: requisite racer bitching about sanctioning body.) Grid position didn't end up mattering much, as I got a great launch off the second row, blasting by Mike Van Slyke on the Bare Bones TZ/Rotax directly in front of me. I was side by side with front-row gridded Chuck Campbell on a Yamaha 500 down the start straight, and I outbraked him into Turn 1, dropping in behind class champ Norm Lastovica, also on a Bare Bones TZ/Rotax, who started on the pole position. The sun was out and the track was warm, so the traction offered was about as good as Summit gets -- equivalent to rough ice vs. the freshly Zambonied stuff. I knew Van Slyke on his slick-shod bike would be all over me soon, so I guarded the inside line going into the slow Turn 5. Naturally, he passed me on the outside. He locked up with Lastovica, and the two slowly pulled away from me. I was turning lap times consistently two seconds a lap faster than my last Summit race, but I needed another second a lap to hang with the TZ/Rotaxes, and I just couldn't seem to step it up. I ended up finishing a lonely third, far ahead of Campbell on the Yamaha in fourth and Gordon Hamilton on an SR in fifth. Only eight or so riders were gridded. Sunday looked better as far as weather goes, with the morning sunny and mild. Unfortunately, just as we rolled to pre-grid -- we were race 7 of 12 -- it started to sprinkle. They sent everyone back to the pits while we waited out the weather. One cloud dumped a bit of rain then moved on. The Bare Bones guys were swapping from rains to slicks and back again. I decided to stay with my "do everything but nothing well" Dunlop 591s :-) After about 1/2 hour, things were dry and we went out. Mike Van Slyke on rains, Norm Lastovica on slicks. I was gridded properly on the front row this time, and got a great holeshot (more on that a bit later). Norm still motored past me before the first turn, and we tiptoed through a very slippery Turn 1. Mike Van Slyke passed me between Turns Two and Three, and passed Norm as well. He seemed to be hooking up very well on his rain tires. I caught up to Norm, who seemed to be riding slower than usual. My bike was sliding everywhere, but I was sewing Norm up, which helped me overcome my terror. :-0 I passed him going into Turn 10 about lap three, but he just blasted past on the straight. Everytime he looked back, I'd just wave at him. I kept right on him, but Summit is a one-line track, and he was tough to pass with so much motor. I finally outbraked him into Turn 1 on lap five, ran wide off the concrete patch, slid my front tire about two feet, found religion, promised to lead a good life, and somehow managed to stay upright and ahead of him. I "put my head down" (tired racer cliche #1) and put some distance between us. I couldn't catch Mike, who was too far ahead, but I ended up holding off Norm by a few seconds. I NEV ER slid a bike around so much in my life! Summit is a very weird track -- it's not bad if it's warm and dry, but the small amount of rain before our race and the cooler temps (the track was dry) made a world of difference. Norm said he just never could get his bike to hook up. This is the first time I've beaten him fairly on the track (except when he had to ride an SRX 250 at Gingerman) so it felt pretty good. BUT . . . I ended up getting docked a lap for jumping the start! It seemed like the flagman held the green flag FOREVER after the board went sideways. I was creeping as I had the revs up and the clutch at the engagement point (AHRMA rules say your rear axle can't be past your starting line) but the guy just held the flag. I could SWEAR I saw him looking directly at me with a sadistic grin! Since AHRMA forgot the "meatball" flag, I didn't get the normal stop-and-go penalty, and was instead docked a lap. (They warned us about this in rider's meeting.) So I was credited with fifth place. Since John Goodpaster was standing about three feet from my starting spot, and I was in the direct line of sight of about half a dozen AHRMA officials, I decided not to argue my "it was just my lightning fast reflexes" theory and took my lumps. After the race, Norm gave me his second place plaque, saying I outrode him and I deserved it! (Of course, he has walls full of them anyway :-)) Pretty classy. So, Swingin' Singles Racing next moves to Putnam Park for a WERA Vintage and Regional Sprint weekend May 17-18, then it's off to the wilds of Wisconsin for the AHRMA National at Road America May 31-June 1. Mark Hatten Swingin' Singles Racing AHRMA, WERA #97 Honda FT500 http://members.aol.com/hatman97 ------------------------------ Date: Fri, 9 May 1997 23:59:54 -0400 (EDT) From: Wrrduckman@aol.com Subject: Re: VintRR Summit AHRMA report In a message dated 97-05-09 11:48:12 EDT, you write: << I was turning lap times consistently two seconds a lap faster than my last Summit race, but I needed another second a lap to hang with the TZ/Rotaxes, >> What lap times were you turning? Do you know what lap times the F750's were turning? I race the track in SCCA races pretty often with a ITB Escort. My best lap time is mid 1:32's. Thanks......... Warren Rhen 93 750 SS 80 1000 SP ------------------------------ Date: Sun, 11 May 1997 20:35:47 -0800 From: "Michael Moore" Subject: VintRR Noise at Sears Point AHRMA National One of the nice things about the Laguna Seca vintage races last month was being able to run open exhausts. I'm wondering if AHRMA has inquired of Sears Point management if they are going to enforce their usual AFM noise limits for the August National. It would be nice (and I think a crowd draw/pleaser, as per the Honda 6, Benelli 4, etc) if we could run on open meggas/chambers. Sears Point runs some pretty noisy drag cars at the Wednesday night drag races and I'd think the occasional 135db CR216 Honda might not be too much more objectionable to the neighbors. John G., if you could check with the AHRMA office when next you check in and let us know on this it would be appreciated. Cheers, Michael Michael Moore Euro Spares, SF CA Distributor of Lucas RITA and Powerbase products Sole North American source of "The Racing Motorcycle: a technical guide for constructors" http://www.eurospares.com AFM/AHRMA #364 ------------------------------ End of VintRR-digest V1 #30 ***************************
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