Im working on a 2003 XR650L, I have to completely rebuild the top end, new piston wrist pin rings and all that other good stuff. I've been looking thru the service manual and I can't find the spec for the ring end gap. I was wondering if anyone on here might know what the spec is for it.
Rarely have I had to dress the end gap on motorcycle engines. When you drop the new rings into the cylinder, what gap readings do the get? If it's not a fresh bore, it's a good idea to check the ring gap at the top, bottom and center of the stroke.
The owner ran the bike without oil and seized the piston it didnt do any damage to the cylinder but it shaved down the intake side of the piston. I cleaned the cylinder with muratic acid to get the aluminum out and rehoned the cylinder. Im putting in a new piston, rings, wrist pin, and circlips.