Interesting... but the Honda RS250 is very high tech, and usually takes the top 2 or 3 spots in the MGP. It is a V twin 2 stroke so it is a lot narrower than...
... From: "Ian" <iwd@...> ... ... Ian, I agree with the destroking, since you could potentially increase the RPM, and by keeping the bore you could put in...
... Yes, longer is better generally. Only good reason for using shorter rods is if you are looking for a shorter engine height. I'm usually stroking engines,...
Ian
iwd@...
Nov 1, 2007 10:37 pm
13830
Honda and Yamaha have both pretty much stopped development of their 125cc and 250cc two stroke GP bikes, and throw the cash at the MotoGP bikes. Both Honda and...
Our '98 HRC kitted RS250 spun the dyno up at 91hp, on unleaded pump fuel. This engine was almost identical to the '97 NSR250 factory engine. The '98 NSR250 was...
... Are you referring to the famous DNF reason given in the old days ? It goes : ".......bike retired due to electrical problems...........". When quizzed...
Ian
iwd@...
Nov 2, 2007 5:51 am
13834
And recently I heard someone say they had a transmission problem..... heh.. Cheers..!! Ron ... In a message dated 11/1/2007 10:51:42 PM Pacific Daylight Time,...
In a message dated 11/1/2007 11:57:53 PM Pacific Daylight Time, julian_bond@... writes: Yesterday I was looking through ads for an Aprilia RS250 road...
Ian, That's exactly right! I distinctly remember seeing the Suzuki RGV500 with Sete Gibernau on board tip into a fast right hander and the back locked,...
Ron, It'll be a sad day when the strokers disappear. They've always been my first love, but I did need to give myself a crash course in four stroke engines...
It all seems a bit bizzare for the manufacturers to be going to 4 strokes. Even when the 990 4-stroke MGP bikes were first introduced, 2-strokes were finally...
Julian Bond wrote: Yesterday I was looking through ads for an Aprilia RS250 road bike. I feel like I should stash one away in the garage with the 300cc ...
No, not bizarre at all.... You see the darn U.S. Guvmint, decided some time ago to BAN 2 smokes, period..! Some idiot told them 2 smokes pollute and get ...
Gosh, I thought that got resolved eons ago when everyone ran HUGE pilot jets just for that purpose... made low rpm running awful but kept them from ...
... From: <GStarRon@...> ... It was not the US at all. It was the Republik of Kalifornia that did this. Not sure if the EPA ever followed. There are...
Matt, Interesting you worked on Honda RS250's before. A few years ago I asked a question to the list about the use of anti-reversion type headers on a ...
Richard, I've been wondering for years about how large in displacement you can push the NS400R. I've always loved that scooter but felt a bit inadequate about...
David Someone may be able to correct me if I am wrong but I believe Stan Stevens in the UK was producing a 500 conversion in the period. I have no idea what it...
Will the smaller bore shroud the valves? Better get the combination off to Ken. -- Dan Timberlake ... From: "hans_o_man" <der_hiha@...> Hi Folks, for...
Hi Dan, no, it wouldn't. The head was developped for a bore of 85mm and 370ccm, later they bored it to 88mm. Valves stayed the same size, they are quite small,...
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