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9. FINAL REDUCTION

9-0

YUP 5 0

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FINAL REDUCTION

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SERVICE INFORMATION........................................................ 9-2

TROUBLESHOOTING.............................................................. 9-2

FINAL REDUCTION DISASSEMBLY....................................... 9-3

FINAL REDUCTION INSPECTION........................................... 9-3

FINAL REDUCTION ASSEMBLY............................................. 9-6

Summary of content (9 pages)

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9. FINAL REDUCTION YUP 50 SERVICE INFORMATION Specified Oil: SAE90# At disassembly: 0.12 liter At change: 0.
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9. FINAL REDUCTION YUP 50 Bolts FINAL REDUCTION DISASSEMBLY Remove the rear wheel. (!14-3) Remove the left crankcase cover. (!8-4) Remove the clutch/driven pulley. (!8-15) Drain the transmission gear oil into a clean container. Remove the transmission case cover attaching bolts. Remove the transmission case cover. Remove the gasket and dowel pins. Driver shift Remove the final gear and countershaft.
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9. FINAL REDUCTION YUP 50 Inspect the final gear and final shaft for wear, damage or seizure. Check the left crankcase bearings for excessive play and inspect the oil seal for wear or damage. Drive Shaft Bearing Final Shaft Bearing Countershaft Bearing Inspect the drive shaft and gear for wear or damage. Check the transmission case cover bearings for excessive play and inspect the final shaft bearing oil seal for wear or damage.
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9. FINAL REDUCTION YUP 50 BEARING REPLACEMENT (Transmission Case Cover) Remove the transmission case cover bearings using the bearing remover. Remove the final shaft oil seal. Bearing Remover Set Drive Shaft Bearing Drive new bearings into the transmission case cover. Bearing Outer Driver Handle BEARING REPLACEMENT (Left Crankcase Cover) Remove the drive shaft. Remove the drive shaft oil seal. Remove the left crankcase bearings using the bearing remover.
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9. FINAL REDUCTION YUP 50 Drive new bearings into the left crankcase. Install a new drive shaft oil seal. Bearing Outer Driver FINAL REDUCTION ASSEMBLY Drive Shaft Install the drive shaft into the left crankcase. Install the final gear and final shaft into the left crankcase.
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9. FINAL REDUCTION Install the countershaft and gear into the left crankcase. Install the resin washer onto the countershaft. Install the dowel pins and a new gasket. YUP 50 Dowel Pins Resin Washer Countershaft Install the transmission case cover. Transmission Case Cover Install and tighten the transmission case cover bolts. Install the clutch/driven pulley. (!8-20) Install other removed parts in the reverse order of removal.
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. FINAL REDUCTION After installation, fill the transmission case with the specified oil. YUP 50 Oil Check Bolt Hole/Filler ＊ • Place the motorcycle on its main stand on level ground. • Check the sealing washer for wear or damage. Specified Gear Oil: SAE90# Oil Capacity: at disassembly: 0.12 liter at change: 0.09 liter Install and tighten the oil check bolt. Torque: 1.0_ 1.5kg-m Start the engine and check for oil leaks.