11.CRANKCASE/CRANKSHAFT/ BALANCE SHAFT ATV 300/250 Measure the connecting rod small end free A play (A). Out of specification: B B 0.8 ~ 1 mm (0.032 ~ 0.04 in) Replace the crankshaft. Measure the crankshaft run out (B). Service Limit: 0.1 mm (0.004 in) C Measure the connecting rod big end side D clearance (C). Service Limit: 0.6 mm (0.024 in) Measure the crank width (D). Out of specification: 55.15 ~ 55.2 mm (2.206 ~2.208 in) Replace the crankshaft. Turn the crankshaft bearings and check for Play excessive play. Measure the crankshaft bearing play. Play Service Limit: Axial : 0.2 mm (0.008 in) Radial : 0.05 mm (0.002 in) Axial Radial 11-5