Reply to thread

Message: [QUOTE="JCBrewer, post: 741091, member: 51782"] I'm a long-time car guy. These two strokes are new to me. My son's JR50 recently ate a piston. I'm thinking, failure of the oil injection system. Anyway, got a new cylinder, piston, pin, bearing, clips, etc. Any tricks on putting it all back together so this doesn't happen again? One specific question, what should I torque the head bolts to? I figure they should torque down in a criss-cross pattern stepping 10 foot pounds every increment. I'm guessing maybe 40 foot pounds total. Wouldn't mind having some real numbers though. I'm also thinking about going with premixed fuel. I've never trusted the oil injection systems. With premixed, if it's running, you're lubed. I'm guessing that'll require rejetting the carburetor to get it to run right. Anyone have any experience with that? [/QUOTE]