Assemble the crankcase (see Crankcase Assembly).
Fill the oil seal lips with grease.
Install the new oil seal [A] so that its surface is flush with
the surface of the crankcase.
Install the balancer shaft clamp lever [B].
Apply a non-permanent locking agent to the threads of
the balancer shaft clamp lever bolt [C].
Torque - Balancer Shaft Clamp Lever Bolt: 25 N·m (2.5
kgf·m, 18 ft·lb)
Turn the balancer shaft so that its mark [D] faces down-
Check that the balancer shaft clamp lever is in contact
with the oil seal.
Torque - Balancer Shaft Clamp Bolt [E]: 9.8 N·m (1.0 kgf·m,
Start the engine and warm it up thoroughly.
Adjust the balancer gear backlash with the engine idling.
The amount of backlash can be changed by turning the
balancer shaft which has eccentric journals.
Start the engine and let it idle.
Loosen the clamp bolt [A] and turn the balancer shaft [B]
clockwise [C] until the balancer gear makes a whining
Turn the shaft counterclockwise [D] until the balancer gear
whining sound disappears and tighten the clamp bolt.
Torque - Balancer Shaft Clamp Bolt: 9.8 N·m (1.0 kgf·m, 87
Balancer Damper Inspection
Remove the balancer and disassemble the weight and
Visually inspect the rubber dampers [A].
If they appear damaged or deteriorated, replace them.