NOTE
Leave the transmission case in the frame unless the case itself requires replacement. For illustration purposes, some photographs may show the case removed. For information on case removal see 6.10 TRANSMISSION CASE.
1. Remove exhaust system. See 4.18 EXHAUST SYSTEM.
2. Relieve drive belt tension. See 1.14 DRIVE BELT AND SPROCKETS.
3. Remove primary chaincase cover, clutch assembly, primary chain, compensating sprocket assembly and primary chaincase. See 5.5 PRIMARY CHAINCASE HOUSING, Removal.
4. Remove the transmission mainshaft bearing inner race.
See 5.5 PRIMARY CHAINCASE HOUSING, Mainshaft Bearing Inner Race.
5. Remove the clutch release cover. See 6.5 CLUTCH RELEASE COVER: CABLE CLUTCH, Removal and Disassembly.
6. See Figure 6-10. Remove oil slinger assembly from mainshaft. Insert long rod through mainshaft bore and remove pushrod.
7. Remove transmission top cover, leaving the cover gasket in place.
8. See Figure 6-11. Rotate the shifter pawl forward enough to raise the free end and place shifter cam pawl on top cover gasket.


NOTES
• Remove and install sprocket nut only while transmission is in vehicle frame. Removing or installing sprocket nut with transmission in transmission stand may cause damage to transmission or stand.
• Replace the main drive gear bearing and retainer if the main drive gear is removed. The bearing will be damaged during the removal procedure.
9. If main drive gear is to be removed, see 6.9 MAIN DRIVE GEAR AND BEARING, Removal.
10. Cover mainshaft clutch hub splines with tape to prevent the splines damaging the main drive gear bearings.
11. See Figure 6-13. Remove the transmission bearing housing mounting hardware. Remove exhaust bracket, if equipped.
NOTE
See Figure 6-12. Never tap on shafts with a hammer to remove transmission assembly. The bearing housing bearings will be damaged. Pry loose using indents at each side of bearing housing.
12. Pry the bearing housing loose. Remove bearing housing, mainshaft, countershaft and shifter cam from transmission case as an assembly. Discard gasket.


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