i am looking at buying a 98 mxz 670 that the guy said it has low compersion what kind of pistons were good for these sleds any help would be great thanks
Yup. SPI, kimpex, others..... I've ran all of the generic stock-style cast pistons with NO problems..... as long as you have correct skirt clearance. I have no personal experience with Wiseco's in a 670, but MANY people say to stay away from them with a Doo.
