Removing The Balancer Driven Gear And Balancer Drive Gear; Checking The Balancer Driven Gear, Water Pump Drive Gear, Primary Drive Gear, And Balancer Drive Gear; Installing The Balancer Driven Gear And Balancer Drive Gear - Yamaha MT-03 Service Manual

REMOVING THE BALANCER DRIVEN
GEAR AND BALANCER DRIVE GEAR
1. Straighten the lock washer tab.
2. Loosen:
• Balancer driven gear nut "1"
• Primary drive gear nut "2"
NOTE:
Place an aluminum plate "a" between the teeth
of the balancer driven gear "3" and balancer
drive gear "4".
3
1
3
3. Remove:
• Balancer driven gear
• Water pump drive gear
• Primary drive gear
• Balancer drive gear
CHECKING THE BALANCER DRIVEN
GEAR, WATER PUMP DRIVE GEAR,
PRIMARY DRIVE GEAR, AND BALANCER
DRIVE GEAR
1. Check:
• Balancer driven gear
• Balancer drive gear
• Water pump drive gear
• Primary drive gear
Damage/wear Replace.
4
a
a
4
2
BALANCER DRIVEN GEAR
INSTALLING THE BALANCER DRIVEN
GEAR AND BALANCER DRIVE GEAR
1. Install:
• Washer
• Balancer drive gear "1"
• Straight key "2"
• Balancer driven gear "3"
• Straight key
• Primary drive gear
• Water pump drive gear
NOTE:
• Align the punch mark "a" on the balancer
drive gear with the punch mark "b" on the bal-
ancer driven gear.
• Install the key with its blunt surface facing "c"
the crankshaft.
3
2. Install:
• Lock washer "1"
• Primary drive gear nut "2"
Primary drive gear nut
80 Nm (8.0 m·kg, 58 ft·lb)
• Lock washer "3"
• Balancer driven gear nut "4"
Balancer driven gear nut
70 Nm (7.0 m·kg, 50 ft·lb)
5-47
b
a
2
c
New
New
1
2