Re: Yamaha QT 50 oddity

Ron Brown /
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Bryan,

I don't have time to re-read all of these posts so let me try to summarize from memory and you can correct me.

You bought the ped, it had not been run for years but ran fine.

It began "4 cycling" (my terminolgy) at about 25 mph.

Removing the air cleaner and box did not help.

Turning off the gas at full speed caused the power to return just before it died.

Cleaning the carb did not help.

Decarbonizing the cylinder and exhaust port did not help.

Conclusion:

Your ped is running too rich.

Maybe the carb was partially plugged when you got it and running fresh gas through it cleaned it up some and you need a smaller main jet.

Maybe your needle and/or jet are worn.

Maybe there is fuel in the float, affecting your fuel level.

I am surprised that removing the air cleaner and air box does not help but I guess yours must be a really good design.

Review all of this then re-post.

Ron

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Subject Written By Posted
  Yamaha QT 50 oddityTopic by: bryan bryan 07/10/01 12:52AM
  Re: Yamaha QT 50 oddityRe: MR MR 07/10/01 02:29AM
  Re: Yamaha QT 50 oddityRe: Carmen Carmen 07/11/01 12:14PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/10/01 04:01PM
  Re: Yamaha QT 50 oddityRe: don-ohio don-ohio 07/12/01 10:42PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/16/01 12:56AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/16/01 01:04AM
  Re: Yamaha QT 50 oddityRe: don-ohio don-ohio 07/16/01 02:08AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/16/01 03:01PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/16/01 03:20PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/18/01 01:41AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/18/01 12:21PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/18/01 02:37PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/19/01 01:22AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/19/01 11:57AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/19/01 02:02PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/19/01 03:02PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/19/01 04:08PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/19/01 05:41PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/19/01 06:39PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/19/01 07:24PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/20/01 11:13PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/21/01 11:35AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/21/01 03:43PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/22/01 06:30PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/22/01 08:58PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/23/01 01:06PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/23/01 10:47PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/24/01 10:59AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/24/01 11:57AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/24/01 01:22PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/24/01 09:06PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/25/01 10:18AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/26/01 04:30PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/26/01 06:01PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/27/01 12:24AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/27/01 11:38AM
  Re: Yamaha QT 50 oddityRe: Shawna Guy Shawna Guy 08/26/02 02:38AM
  Re: Yamaha QT 50 oddityRe: Bryan Bryan 08/26/02 03:26AM
  Re: Yamaha QT 50 oddityRe: Caton9 Caton9 10/21/02 06:02PM
  Re: Yamaha QT 50 oddity parts!Re: Bryan Bryan 10/21/02 06:17PM
  Re: Yamaha QT 50 oddityRe: Wayne Wayne 08/26/02 09:10AM
  Re: Yamaha QT 50 oddityRe: brynab brynab 07/21/01 07:26PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/30/01 12:24AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/30/01 12:18PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/30/01 01:46PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/30/01 02:08PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 07/30/01 11:01PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 07/31/01 11:46AM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/10/01 11:47PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/10/01 11:51PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 08/11/01 12:34PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/13/01 08:54PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 08/14/01 12:19PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/14/01 03:55PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 08/15/01 01:03PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/16/01 01:17AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 08/16/01 12:45PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/16/01 02:00PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/16/01 04:42PM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 08/16/01 08:38PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/17/01 02:02AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 08/17/01 12:51PM
  Re: Yamaha QT 50 oddityRe: Brian Brian 08/17/01 03:27PM
  Re: Yamaha QT 50 oddityRe: bryanb bryanb 08/17/01 02:03AM
  Re: Yamaha QT 50 oddityRe: Roy Markee Roy Markee 11/12/01 02:03AM
  Re: Yamaha QT 50 oddityRe: Ron Brown Ron Brown 11/12/01 12:43PM
  Re: Yamaha QT 50 oddityRe: k rude k rude 10/19/02 06:02PM
  Re: Yamaha QT 50 oddityRe: Joe Hunt Joe Hunt 10/21/02 12:30AM

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