Replace the washers [A] with a new one.
Tighten the crankcase bolts, starting with the periphery of
the crankshaft, then outward.
Torque - Crankcase Bolts (M6): 12 N·m (1.2 kgf·m, 106 in·lb)
Crankcase Bolts (M7): 15 N·m (1.5 kgf·m, 11 ft·lb)
After tightening the crankcase bolts, wipe up the liquid
gasket seeping out around the mating surface, espe-
cially around the area.
Make sure that the crankshaft, drive shaft, and output
shaft rotate smoothy (in the neutral position).
If the crankshaft will not turn, probably the crankshaft is
not centered; install the crankshaft jig at the bottom-dead
-center, and tap the appropriate end of the crankshaft with
a mallet to reposition it.
Special Tool - Crankshaft Jig: 57001-1174
Gear Positioning Lever (see External Shift Mechanism
Shift Drum Cam (see External Shift Mechanism Installa-
Check to see that gears shift smoothly from 1st to 5th
gear, and 5th to 1st while spinning the output shaft.
Set the shift drum in the neutral position.
Replace the O-ring [A] on the output shaft with a new one.
Apply grease to the O-ring.
Install O-ring on the output shaft while expanding the O
Insert the collar [B] with the groove [C] faces inside.
Install the balancer drive gear [A] to the crankshaft so that
the wide groove [B] of the drive gear fits to the wide tooth
[C] on the crankshaft.
Replace the circlip with a new one, and install it.
Special Tool - Outside Circlip Pliers: 57001-144