Hey guys I’ve got a few questions about my rear down/rebuild. This is my first time tearing down a dirtbike engine. I’m pretty experienced and have built several Yamaha Banshee engines in the past with success. So I’ve been wondering...do I need to invest in a case splitting tool? Also do I need a crank installation tool as well? The Banshee cases come apart really easily. Just a few small taps here and there with a dead blow mallet and ta-da. Now obviously the YZ is a different engine. Next question is piston. I’ve always ran forged Wiseco Pro-lite pistons and that’s my intention for my YZ so I’ve been curious on either a Pro-lite or the new single ring Racer Elite piston? Just wondering what you’ve guys have experienced with these. I’ll be sending the cylinder & head off to Powerseal USA after Christmas to have the cylinder replated and the head fixed after I let Eric Gorr work on it. The head needs to be corrected for race/pump gas mix.
2011 Yamaha YZ 250 -MX
1996 Yamaha Banshee 350 -Trails
1982 Chevy S10
2005 Pontiac GTO -451rwhp