Help XT600E big bore piston kit
hey guys...I'm about to get a new piston kit for my 1990 Yamaha XT600E...
I've searched and found Wiseco 2MM over bore (97MM) 11.5:1 compression ratio.... ain't that too much compression?
The rest of the engine is still stock besides the kickstart I've assembled..... The bike has only a little less than 17000KM so it's "NEW" considering it's age but since it has to have some work done because it ain't got any compression I'll put in a higher compression piston  althou 1mm might be what i need which I prefer than having to over bore 1mm more
Help
Last edited by bacardi23; 10 Feb 2008 at 22:25.
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