Re: Yamaha QT 50 oddity

bryanb /
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Man long thread!

check this out:

http://mopedarmy.com/forums/discuss/1/13028/11497/

its another forum with a QT50 with similar trouble, though im getting about 26 out of it on a good day... but it still intermittantly looses power... Some dude on the above thread mentions the piston rings...

what intrigues me is that the mechanic at the Yamaha shop last night mentioned that one of the rings might have a problem, and it leaking periodically, and then loosing compression. That kinda makes sense, as I have been through everything else, and thats how the engine sounds. Its still firing when the loss of power occurs, and it kinda sounds as if it were loosing compression.

He says the head comes off, and then the block/cylinder slides off, leaving the piston and crank behind. I might try looking at that this weekend...

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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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