Replacing Main Drive Gear Oil Seal

Main Drive Gear Oil Seal Tool, Part No. 95660-42, (Figure 4-8) enables removing worn or damaged oil seal and installing new seal without removing or disassembling transmission. It may be used on transmission removed from chassis as well. To use, transmission must be assembled with the exception of clutch and transmisison sprocket.

REMOVING OIL SEAL

Shift transmission into low gear and lock rear wheel to prevent parts from turning while disassembling.

Remove inner primary cover, compensating sprocket, front chain, clutch assembly, inner primary case, transmission sprocket and rear chain.

Figure 4-8. Main Drive Gear Oil Seal Tool

Figure 4-9. Centerpunching Screw Hole Locations

Figure 4-10. Installing Oil Seal

Figure 4-9. Centerpunching Screw Hole Locations

Remove tool and stake case into notches in seal.

After assembly is complete, check clutch control adjustment.

Figure 4-11. Pulling Oil Seal place and body is tight against end of transmission case.

CAUTION

Take care not to plug the oil hole at the base of the recess with sealant.

Figure 4-10. Installing Oil Seal

Insert sleeve (C, Figure 4-8) into oil seal. Place sleeve and seal on main drive gear with lip side of seal toward transmission case. Turn seal so it will not stake at same points old seal was staked.

Place body on sleeve and turn actuating screw into body as far as it will go without pulling body away from seal. Install mainshaft clutch hub nut and turn it in against actuating screw as shown in Figure 4-10. Back out actuating screw as shown in Figure 4-10. Back out actuating screw until body has pushed oil seal into

REPLACING MAINSHAFT BALL BEARING

Transmission mainshaft ball bearing (6, Figure 4-20) may be replaced without removing transmission from motorcycle by using the following procedure: Remove transmission side cover (24, Figure 4-19) as described in "Disassembling Kick Starter." Remove 1 through 5 in Figure 4-20. Using a screwdriver, pry out bearing shield. Use hooked end of Puller, Part No. 95659-42 to pull the bearing out by engaging bearing inner race with hooks on puller. Use centering button to avoid damaging shaft. Carefully tap in new bearing using care not to damage bearing shield.

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