Bought me a 18 XCW 300
Bought me a 18 XCW 300 used a month ago and knew it had been raced a majority of its life. Still on the original piston after 70hrs made me wondered how long it lasted. Bike ran fine and pulled hard with the red auxiliary spring so wasn't terribly concerned. Broke into the top end today and found this… Haven't seen a piston do that but am sure it's been too many hours. I don't see any gouges in cylinder but also don't see any cross hatching. Should I get the cylinder replated? The bigger question is if that chip out of the piston could have fallen down in the bottom end or somehow made it past the rings and out the exhaust port. I can't find evidence of metal clanking around anywhere. What would you guys do? Replate and new piston rings and send her? Or can I get away with piston and rings.