RE: MAke it FASTER

Tony /
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This symptom seems to be a reoccuring complaint on the message board over the past almost year and I have'nt heard a satisfactory solution offered yet. For some reason PUCH with the BING carburetor is the major source of the complaint. I have two PUCH bikes with this problen to varying degrees and I distinctly gets the impression that the engine suddenly is fireing every-other revolution rather than every revolution as is normal for a two-stroke cycle engine. All my instincts tell me that when it starts to run rough it is because it has become too rich. Yes, we could start fooling around with main jet sizes, but here in the Good Ol' USA, there are very few sources to purchase them and a set of 6 or so would run the better part of Fifty Bucks and I am not convinced that is the problem. If it is an excess fuel problem, I am wondering if perhaps the float needle valve tip has become worn and is not sealing properly under the conditions of severe vibration at the higher engine speeds and the effective fuel level in the float chamber is too high yielding a too rich mixture. It is NOT a function of exhaust back pressure, clean exhaust, no restrictor, no exhaust system at all, none of these make a difference. It might be something to do with ignition, but a new properly gapped spark plug does not change anything. It might just be that the piston/rings/cylinder have become too worn and the gas leakage is too great, I hope this is not true. I think that there are several of us that would like a final solution to this nagging problem, HELP!

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  MAke it FASTERTopic by: evan evan 10/24/00 11:31PM
  RE: MAke it FASTERRe: Daniel Daniel 10/25/00 05:31AM
  RE: MAke it FASTERRe: Daniel Daniel 10/25/00 05:33AM
  RE: MAke it FASTERRe: Tony Tony 10/25/00 07:34AM
  RE: MAke it FASTERRe: Fred Fred 10/25/00 09:43AM
  RE: MAke it FASTERRe: Jon Jon 10/25/00 10:43PM
  RE: MAke it FASTERRe: Fred Fred 10/26/00 12:14PM
  RE: MAke it FASTERRe: Jon Jon 10/26/00 03:45PM
  Not that kind of "lean"Re: Fred Fred 10/27/00 12:12PM
  RE: Not that kind of "lean"Re: caleb caleb 10/27/00 05:03PM
  RE: Not that kind of "lean"Re: mike mike 10/28/00 01:08AM
  RE: Not that kind of "lean"Re: Jon Jon 10/28/00 10:17AM
  Not true.Re: Fred Fred 10/28/00 01:42PM
  RE: Not true.Re: Jon Jon 10/28/00 02:19PM
  RE: Not true.Re: bike-boy bike-boy 10/28/00 02:45PM
  No BSRe: Fred Fred 10/28/00 03:02PM

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