10. FINAL REDUCTION AGILITY 50 BEARING REPLACEMENT (LEFT CRANKCASE) Remove the drive shaft. Remove the drive shaft oil seal. Remove the left crankcase bearings using a bearing puller. Special Bearing Puller Bearing Puller, 12mm Drive new bearings into the left crankcase. Install a new drive shaft oil seal. Pilot FINAL REDUCTION ASSEMBLY Install the drive shaft into the left crankcase. Drive Shaft Install the final gear and final shaft into the left crankcase. 10-4