Removing The Balancer Drive Gear And Balancer Driven Gear; Removing The Balancer Drive Gear And Buffer Boss; Checking The Oil Pump Drive - Yamaha YFM660FP Service Manual

BALANCER GEARS AND OIL PUMP GEARS
REMOVING THE BALANCER DRIVE GEAR
AND BALANCER DRIVEN GEAR
1.Straighten the lock washer tabs.
2.Loosen:
Balancer driven gear nut 1
●
NOTE:
Place an aluminum plate 2 between the teeth
of the balancer drive gear 3 and balancer
driven gear 4.
REMOVING THE BALANCER DRIVE GEAR
AND BUFFER BOSS
1.Remove:
Plate 1
●
Balancer drive gear 2
●
Springs 3
●
Pins 4
●
Buffer boss 5
●
NOTE:
Using a three-leg puller 6 when removing
●
the balancer drive gear 2 and buffer boss
5.

CHECKING THE OIL PUMP DRIVE

1.Check:
Oil pump drive gear 1
●
Oil pump driven gear 2
●
Cracks/wear/damage → Replace.
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ENG