10. FINAL REDUCTION/ TRANSMISSION SYSTEM ATV 150/125 FINAL REDUCTION INSPECTION Inspect the countershaft and gear for wear or damage. Drive Shaft Countershaft Bearing Inspect the drive shaft and gear for wear or damage. Check the left crankcase bearings for excessive play and inspect the oil seal for wear or damage. Drive Shaft Bearing Main Shaft Bearing Main Shaft Bearing Inspect the final shaft gear for wear or damage. Check the right crankcase bearings for excessive play and inspect the oil seal for wear or damage. Final Shaft Gear Countershaft Bearing FINAL REDUCTION INSTALLATION Install the final gear and final shaft into the left crankcase. Install the countershaft and gear into the left crankcase. Install the main shaft and gear into the left crankcase. Left Crankcase 10-8