2004 Skidoo ZX Series Service Manual, Page 280Get this manual
Section 05 ENGINES (4-TEC) Subsection 07 (CRANKSHAFTDRIVE GEARS)
Connecting Rod Big End Axial Play Using feeler gauge, measure distance between butting face of connecting rods and crankshaft counterweightIf the distance exceeds specified tolerance, replace the crankshaft
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1Crankshaft
connecting rods no2NOTE: Mark the connecting rods prior to dismantlingThe connecting rods must be reinstalled in exactly the same position and running direction
Inspection
NOTE: Check each bearing journal of crankshaft for scoring, scuffing, cracks or other signs of wearNOTE: Replace crankshaft if the gears are worn or otherwise damagedCAUTION: Components with less than the service limit always have to be replacedIf this is not observed, severe damage may be caused to the engine