10. CRANKCASE/CRANKSHAFT ZX / SCOUT 50 Measure the crankshaft runout. Service Limit A B 0.150mm 0.100mm replace if over replace if over Play Check the crankshaft bearings for excessive play. The bearings must be replaced if they are noisy or have excessive play. Play Axial Radial CRANKSHAFT INSTALLATION Wash the crankshaft in cleaning solvent and then check for cracks or other faults. 10-5