bradbowe Posted March 19, 2008 I have a 2002 cr80 .Will a top end and piston from a cr85 06 fit on the 02 engine. Share this post Link to post Share on other sites
CV4 Posted March 19, 2008 No. The 80 had a 47mm bore while the 85 has a 47.5mm bore. Share this post Link to post Share on other sites
CRFPOOR Posted March 21, 2008 I think it will if you ues the 85 jug. Share this post Link to post Share on other sites
teemtrubble Posted March 22, 2008 You could bore and hone it but I don't know if the wrist pin is the same dia... Share this post Link to post Share on other sites
