2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 145Get this manual
Section 03 ENGINES (2-STROKE) Subsection 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
Lay 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
10 20 30 40 50 60
0 90 80 70
RECTIFYING SURFACES
Stick fine sand paper sheet on the surface plate then lightly oil the sand paperRub part mating surface on sand paper using 8-figure movementsSand until mating surface is perfectly straightA06C1TA