Removing The Primary Drive Gear And Balancer Gears; Checking The Balancer Gears And Primary Drive Gear; Assembling The Balancer Driven Gear; Installing The Primary Drive Gear And Balancer Gears - Yamaha R15 2022 Service Manual

EAS32459
REMOVING THE PRIMARY DRIVE GEAR
AND BALANCER GEARS
1. Loosen:
• Primary drive gear nut "1"
TIP
Place the aluminum plate "a" between the bal-
ancer drive gear "2" and the balancer driven
gear "3", and then loosen the primary drive gear
nut.
2
1
2. Straighten the lock washer tab.
3. Loosen:
• Balancer driven gear nut "1"
TIP
Place the aluminum plate "a" between the bal-
ancer drive gear "2" the and the balancer driven
gear "3", and then loosen the balancer driven
gear nut.
2
EAS32460
CHECKING THE BALANCER GEARS AND
PRIMARY DRIVE GEAR
1. Check:
• Balancer drive gear
• Balancer driven gear
Cracks/damage/wear → Replace.
2. Check:
• Primary drive gear
Refer to "CHECKING THE PRIMARY DRIVE
GEAR" on page 5-47.
BALANCER GEAR
3
a
a
1
3
5-55
ASSEMBLING THE BALANCER DRIVEN
GEAR
1. Assemble:
• Buffer boss "1"
• Balancer driven gear "2"
TIP
Align the punch mark "a" on the buffer boss with
the punch mark "b" on the balancer driven gear.
EAS32461
INSTALLING THE PRIMARY DRIVE GEAR
AND BALANCER GEARS
1. Install:
• Balancer driven gear "1"
• Lock washer
New
• Balancer drive gear "2"
• Primary drive gear
• Washer "3"
• Balancer driven gear nut
• Primary drive gear nut
TIP
• Align the punch mark "a" in the balancer drive
gear "2" with the punch mark "b" in the balancer
driven gear "1".
• Be sure to install the washer so that its sharp
edge "c" is facing the primary drive gear.
2
a
ENG
1
b