2001 Ski-Doo Mini Z Factory Shop Manual, Page 80Get this manual
Section 04 ENGINE Subsection 05 (COMPRESSION TEST AND ENGINE DIMENSION MEASUREMENT)
PISTON PIN (outside diameter)
STANDARD 13.0 mm (0.51 in) SERVICE LIMIT 12.954 mm (0.5100 in)
PISTON-TO-PISTON PIN BORE CLEARANCE
STANDARD 0.0020.014 mm (0.00010.0006 in) SERVICE LIMIT 0.08 mm (0.003 in)
Mesure piston pin with micrometer, as shown in the next photo
Compare both previously measured piston pin (outside diameter) and piston pin bore (inside diameter)If clearance is out of service limit value, replace piston pin or piston as needed
CONNECTING ROD SMALL END (inside diameter)
STANDARD
A31C1TA
SERVICE LIMIT 13.07 mm (0.515 in)
13.005 mm (0.5120 in)
MEASURE PISTON PIN