10. CRANKCASE/CRANKSHAFT ZX / SCOUT 50 Drive a new crankshaft bearing into the right crankcase. Bearing Outer Driver Handle A Bearing Outer Driver, 37x40mm Bearing Driver Pilot, 17mm Drive a new crankshaft bearing into the left Bearing Outer Driver Handle A crankcase. Bearing Outer Driver, 42x47mm Pilot, 20mm Install the crankshaft into the left Crankcase Assembly Collar crankcase. Crankcase Assembly Tool 10-6