2007-2008 Polaris IQ Snowmobiles Service Manual, Page 126Get this manual
Engine and Cooling Systems specificationcannot exceed the maximum clearance differential specification
= In mm.061mm)
= In mmConnecting Rod Side Clearance: .0114"-.0295" (.289-.749mm) Maximum Clearance Differential .002" (.051mm) Rotate the connecting rod on the crankshaft and feel for any rough spotsCheck radial end play in rod by supporting rod against one thrust washer and alternately applying up and down pressureReplace bearing, pin, and thrust washers if side clearance is excessive or if there is any up and down movement detectable in the big end bearing
Bearing Interference Fit: Carbureted.001"-.002" (.026 -.051mm) CFI.0014".0024" (.061mm)
Main Bearing