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05-23-2005, 12:13 AM
| #1 (permalink) |
| Found second gear by accident   Join Date: Apr 2005
Bike: 06 Buell Ulysses
Location: DFW, Texas
Posts: 308
|  Questions about rebuilding top end
HI guys. I finally had some time to work on my old 1986 RM250. I was having major performance issues (see Crappily Running RM250 ). Ive pulled the top end off and my piston is scorched. The sleeve inside the cylinder appears to be in good shape. There is no burn or scratch marks. My question is: Is there any way to tell what size piston i have without using complicated and expensive measuring tools that i dont have? There is a bunch of letters on various parts of the piston but i dont know what they all mean.... Also, are sleeves easy to install? Im thinking of replacing it too if its not too expensive and/or difficult to do... This is my first time doing top end work so any advice would be appreciated
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