Service manual

Page 101 of 151

Balance Shaft Bearing Inspection

• Check the bearings on the right and left

crankcase.

• Rotate each bearing inner ring with your fingers.

• The bearings should turn smoothly and quietly.

• Ensure the bearing outer ring is mounted on the

gear tightly.

• If bearing rotation is uneven, makes noise, or is

loosely mounted, replace it.

• Special tool: Inner bearing puller

• Special tool: Bearing driver

11-6 Crankcase Assembly

• Install the wave washer into the right crank

bearing seat.

• Install the crank shaft on the right crankcase.

• Align the position mark on the balance shaft

drive gear with that of balance shaft driven gear,

and then install the balance shaft onto right

crankcase.