they could be cracks, double check to be sure. you will get some marks/discoloring there becuase thats BDC. this is what ive typically seen, the crack is at the high point, you can see some 10' o clock and 2 o clock marks that appear to be cracks but they are actually just marks because thats where the piston hits bottom. yours may be cracks but honestly ive never seen them start in that location.
Good call 100hp. Still gonna replace it as y'all ca see it's not to fresh I probably jumped the gun calling it cracked. On the bright side this is a perfect excuse to tear it down and get it ported
Jack Schitt
DIE FIRST, worry about it later!
DON'T talk about it, Just DO IT!
When in doubt, GO FLAT OUT!
2001 CR500R1 - SOLD
2007 CR250R7 - SOLD
Wife and Daughter - Left Aug 17 - 2010
Jack Schitt - ??????????????
So much for the 250 ign. This bike is a basket case! The swingarm bolt is stuck, so I'll need to cut it out and redo the bearings. The wiesco piston IS cracked.