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buzzbro
Big Bore, Stroked & Bling +
Joined: 10 Dec 2006
Posts: 426
Location: QLD
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 Posted: Sat Jun 30, 2007 7:24 pm Post subject: peewee 50 problem |
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I have a 2005 peewee 50 that has developed a rattle that seems to be in the barrel ,top end area.It is a tinny noise that is relative to engine revs.Any ideas would be appreciated before i start throwing some spanners at it.
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I am old and wise because i survived young and stupid |
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Ozzy84
Moderator
Joined: 10 Apr 2006
Posts: 894
Location: Gold Coast QLD
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| Posted: Sun Jul 01, 2007 4:40 pm Post subject: |
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doubt it but maybe running lean and pinging...
does it run as good as ever or is it spluttering??? more info maybe. |
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buzzbro
Big Bore, Stroked & Bling +
Joined: 10 Dec 2006
Posts: 426
Location: QLD
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| Posted: Sun Jul 01, 2007 5:22 pm Post subject: |
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Runs fine can't fault it .Noise sounds top endish but lets face it what is there in a two stroke top end.Unfortunately explorative surgery sounds like the only answer at this stage.
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I am old and wise because i survived young and stupid |
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Ozzy84
Moderator
Joined: 10 Apr 2006
Posts: 894
Location: Gold Coast QLD
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| Posted: Sun Jul 01, 2007 5:32 pm Post subject: |
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i'll take a wild punt and say rings are flogged...
dont ask me why, like i said pure guess  |
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yfz450
Blaster class
Joined: 13 Feb 2006
Posts: 128
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| Posted: Tue Jul 10, 2007 9:56 am Post subject: |
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definataly sounds like the top end, PW's have a terrible airbox boot on them and they let the dirt in like no tomorrow. sounds like it has just gotten a bit of dirt in and opened up the clearance(piston to bore).
its very simple to do a top end on these, go up a size on the piston and get your barrel bored and it will be as good as new. Yamaha has quite a few oversizes as OEM so getting parts wont be a problem.
when its all back together, seal the airbox to the intake boot with some silicone. |
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