2002 Ski-Doo Shop Manual Volume One, Page 150Get this manual
Subsection 05
Section 04 ENGINE (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
eFrom dimension A, subtract dimension BThe result is the actual crankshaft end-play that must be within specificationIf the result is over specification, add adjustment shim(s) to reach this specificationIf the result is under specification, remove adjustment shim(s) to reach this specificationTo Summarize
A A-B=M1M2M3 M4M5M6M7M8 Actual end-play that must be within specification
CHECKING SURFACE FLATNESS
Intake manifold, intake manifold cover can be checked for perfectly mating surfacesLay part on surface plate (marble, mirror or thick glass plate)Holding down one end of part, try pushing down the other endIf any play is felt, part must be rectified
RECTIFYING SURFACES
Stick fine sand paper sheet on the surface plate then lightly oil the sand paperRub part mating surface on sand paper using 8figure movementsSand until mating surface is perfectly straight