Page 1
10. FINAL REDUCTION
10-0
FILLY LX 50
10
10
Page 2
10. FINAL REDUCTION
10-1
FILLY LX 50
SERVICE INFORMATION
SPECIFICATIONS
Specified Oil: GEAR OIL SAE 90#
Oil Capacity: At disassembly : 0.11 liter
At change : 0.10 liter
SPECIAL TOOLS
Bearing puller, 10,12,15,18mm
TROUBLESHOOTING
Engine starts but motorcycle won‘t move
• Damaged transmission
• Seized or burnt transmission
• Faulty drive belt
• Faulty clutch
Abnormal noise
• Worn, seized or chipped gears
• Worn bearing
Oil leaks
• Oil level too high
• Worn or damaged oil seal
SERVICE INFORMATION
......................
10-1 FINAL REDUCTION INSPECTION
.....
10-2
TROUBLESHOOTING
.............................
10-1 BEARING REPLACEMENT
.................
10-3
FINAL REDUCTION DISASSEMBLY
....
10-2 FINAL REDUCTION ASSEMBLY
.......
10-4
Page 3
10. FINAL REDUCTION
10-2
FILLY LX 50
FINAL REDUCTION DISASSEMBLY
Remove the rear brake cable. (!13-3)
Remove the rear wheel. (!13-2)
Remove the left crankcase cover. (!9-2)
Remove the clutch/driven pulley. (!9-10)
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.
Remove the final gear and countershaft.
FINAL REDUCTION INSPECTION
Inspect the countershaft and gear for wear or
damage.
Inspect the final gear and final shaft for wear,
damage or seizure.
Final Gear
Countershaft
Drive Shaft
Countershaft
Bolt
Final Shaft
Page 4
10. FINAL REDUCTION
10-3
FILLY LX 50
Check the left crankcase bearings for
excessive play and inspect the oil seal for
wear or damage.
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.
BEARING REPLACEMENT
(TRANSMISSION CASE COVER)
Remove the transmission case cover bearings
using a bearing puller.
Remove the final shaft oil seal.
Bearing Puller
Drive new bearings into the transmission case
cover.
Drive Shaft Bearing
Final Shaft Bearing
Countershaft Bearing
Drive Shaft Bearing
Do not remove the transmission case
cover except for necessary part replacement. When replacing the drive shaft,
also replace the bearing and oil seal.
＊
Bearing Puller
Oil Seal
Final Shaft Bearing
Count ershaft Bearing
Outer Driver, 32x35mm
Specia
Page 5
10. FINAL REDUCTION
10-4
FILLY LX 50
BEARING REPLACEMENT (LEFT
CRANKCASE)
Remove the drive shaft.
Remove the drive shaft oil seal.
Remove the left crankcase bearings using a
bearing puller.
Bearing Puller
Drive new bearings into the left crankcase.
Install a new drive shaft oil seal.
FINAL REDUCTION ASSEMBLY
Install the drive shaft into the left crankcase.
Install the final gear and final shaft into the
left crankcase.
Pilot
Drive Shaft
Bearing Puller, 12mm
Specia
Page 6
10. FINAL REDUCTION
10-5
FILLY LX 50
Install the countershaft and gear into the left
crankcase.
Install the resin washer onto the countershaft.
Install the dowel pins and a new gasket.
Install the transmission case cover.
Install and tighten the transmission case cover
bolts.
Install the clutch/driven pulley. (!9-13)
After installation, fill the transmission case
with the specified oil. (!3-7)
Specified Gear Oil: SAE90#
Oil Capacity:
At disassembly : 0.11 liter
At change : 0.10 liter
Install and tighten the oil check bolt.
Torque: 0.8_ 1.2kgf-m
Start the engine and check for oil leaks.
Check the oil level from the oil check bolt
hole and add the specified oil to the proper
level if the oil level is low.
• Place the motorcycle on its main stand
on level ground.
• Check the oil sealing washer for wear
or damage.
＊
Resin Washer
Countershaft
Drain Bolt
Transmission Case Cover
Oil Check Bolt Hole/Oil Filler
Bolt
Dowel Pins
Gasket
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