Re: 1984 Yamaha QT50 - smokes a lot and loses power on ride

B F /
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The Chinese bolt on top ends are all 60cc kits. Malossi makes a 70cc kit for more money. I’ve been running a niche 60cc kit for a few years, soft seized it once, been riding it since and it’s been good to me.

If you’re mechanically inclined with the proper tools, repair the broken exhaust stud. If you’re not up to it or lack tools, just go buy a top end, 50cc or 60cc. You can buy oem Yamaha top end parts if you want to stay true Yamaha, you’ll pay for it though.

I would suggest replacing crank seals either way, although your symptoms sounds suspect of a crank seal.

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Subject Written By Posted
  1984 Yamaha QT50 - smokes a lot and loses power on rideTopic by: S C S C 06/11/21 08:58AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: E BinOH E BinOH 06/11/21 10:50AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/11/21 11:01AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/11/21 12:26PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/11/21 01:36PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: E BinOH E BinOH 06/11/21 01:46PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/11/21 04:06PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: B F B F 06/11/21 12:14PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/11/21 01:32PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: b to the eff b to the eff 06/11/21 01:34PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/11/21 04:14PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: Ron Peek Ron Peek 06/11/21 04:14PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: Ron Peek Ron Peek 06/11/21 04:29PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/11/21 04:43PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: B F B F 06/11/21 04:53PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/11/21 06:46PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: campeona del mundo campeona del mundo 06/11/21 06:53PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/11/21 08:21PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: punkrock randy punkrock randy 06/11/21 08:17PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/12/21 10:47AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/12/21 01:22PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/12/21 02:13PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/12/21 04:27PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/12/21 05:12PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/12/21 05:31PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/13/21 08:57AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: b to the eff b to the eff 06/12/21 04:40PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/12/21 04:55PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: b to the eff b to the eff 06/13/21 11:23AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/13/21 12:13PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/13/21 08:42PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/13/21 08:58PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/14/21 08:04PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/14/21 09:01PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/15/21 07:43AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: P D P D 06/15/21 08:40AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: ken gilbert ken gilbert 10/10/21 07:39AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: b to the eff b to the eff 10/10/21 11:56PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 10/11/21 09:35AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/16/21 06:58PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/17/21 11:33AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: Born to be WillD Born to be WillD 06/17/21 12:24PM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: S C S C 06/20/21 09:27AM
  Re: 1984 Yamaha QT50 - smokes a lot and loses power on rideRe: Billy Mild Billy Mild 10/10/21 06:52PM

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