2001 Ski-Doo Mini Z Factory Shop Manual, Page 83Get this manual
Subsection 05
Section 04 ENGINE (COMPRESSION TEST AND ENGINE DIMENSION MEASUREMENT)
CAMSHAFT HOLDER (inside diameter)
STANDARD 14.0 mm (0.55 in) SERVICE LIMIT 14.048 mm (0.5531 in)
RECTIFYING SURFACES
Stick fine sand paper sheet on the surface plate then lightly oil the sand paperRub manifold mating surface on sand paper using 8-figure movementsSand until mating surface is perfectly straight
Measure camshaft holder inside diameter with telescoping gauge and micrometer, as shown in the next photo