6. Sprocket shaft bearing spacer

7A. Bearing shield washer

8. Flywheel and rod assembly

9A. Sprocket bearing outside half

11 A. Bearing inner race spacer

12A. Bearing outer race

13A. Bearing outer race lock ring

14A. Bearing outer race

15A. Left crankcase half

16A. Sprocket bearing inside half

NOTE: The "A" number suffix indicates part change for 1969.

Figure 3E-3. Sprocket Shaft Bearing Assemblies - Section View screw against sprocket shaft center as shown in Fig. 3E-7. Keep bearings in a set with proper bearing outer races.


Grip pinion shaft in copper covered vise jaws so shafts are in vertical position. Insert a rod about 5 in. long and 1/2 in. in diameter through holes in flywheels to keep them from turning. Remove lock plate screw (1), lock plate (2) and crank pin nut (3). Strike left flywheel with soft metal mallet at about 90 degrees from crank pin hole on wheel periphery to loosen. Lift left flywheel (4) off crank pin.

Hold down bearing assembly with a short length of pipe or tubing so connecting rods (5) may be slipped off bearings. Remove bearings (6). Hold together in set until bearings are washed and refitted to crank pin.

Remove lock plate screw (7), lock plate (8) and gear shaft nut (9). Tap pinion shaft (11) out of flywheel (10). Remove key (12) from shaft.

Clamp crank pin in vise. Remove lock plate screw (13), lock plate (14) and crank pin lock nut (15). Tap crank pin (16) out of flywheel and remove key (17).

Grip sprocket shaft in vise and remove lock plate screw (18), lock plate (19) and sprocket shaft lock nut (20). Remove sprocket shaft (21) by tapping it out of flywheel, and remove key (22).

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