11.CRANKSCASE/CRANKSHAFT/ BALANCE SHAFT MXU 250R/300R Turn the crankshaft bearings and check for excessive play. Play Measure the crankshaft bearing play. Play Service Limit (replace if over): Axial : 0.2 mm (0.008 in) Radial : 0.05 mm (0.002 in) Axial Radial CRANKCASE/BALANCER Mark (Crankshaft) INSTALLATION Install the balance shaft and crankshaft into the left crankcase. Align the mark on the balance shaft with the mark on the crankshaft. Install the dowel pins and new gasket. Install the right crankcase and tighten the crankcase attach bolts. Install the timing chain. Mark (Balancer) 11-6