I just broke a dime size piece of my piston off and it was smeared into the cylinder wall. Some muratic acid and a ball hone and its as good as new.
_________________
1995 A kit TZ 250
1994 Rothmans NSR 300sp SOLD
1998 RM 250 freestyle/motorcross
1998 Meathanol burning CR 500 AF super retard/motorcross/sand dunes/play bike