measuring piston size

yz fan

Member
Oct 17, 2002
4
0
I need to know where to place my caliper when measuring the size of my piston. On the crown just above the rings? Mid-section below the rings? The old one currently measures at 69.5mm on the crown above the rings. Thanks!
 

jmics19067

LIFETIME SPONSOR
Jan 22, 2002
2,097
0
measure the bottom of the skirt from front to back. If there is a notch in the skirt on the intake side just above that.
 
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