Yamaha XV19SX(C), Service Manual

Page: 316 / 494

CLUTCH
5-67
• Left balancer idle gear
Burrs/chips/roughness/wear
→
Replace the
defective part(s).
2. Measure:
• Left balancer driven gear inside diameter “a”
Out of specification
→
Replace.
3. Measure:
• Left balancer driven gear housing outside di-
ameter “a”
Out of specification
→
Replace.
4. Calculate:
• Left-balancer-driven-gear-to-left-balancer-
driven-gear-housing clearance
Out of specification
→
Replace the defective
part(s).
NOTE:
Calculate the clearance by subtracting the left
balancer driven gear housing outside diameter
from the left balancer driven gear inside diame-
ter.
ET1D71022
INSTALLING THE LEFT BALANCER DRIVE
GEAR
1. Install:
• Left balancer weight 1 “1”
• Left balancer weight 2 “2”
• Left balancer driven gear “3”
NOTE:
Make sure that the punch marks “a” on the left
balancer driven gear are facing toward left bal-
ancer weight 2.
2. Remove:
• Generator rotor
Refer to “REMOVING THE GENERATOR”
on page 5-79.
3. Align:
• Mark “a” on the generator drive gear of the
crankshaft
(with the mark “b” on the generator shaft driv-
en gear)
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
a. Turn the crankshaft.
b. When the front and rear pistons are near
TDC, align the mark “a” on the generator
drive gear of the crankshaft with the mark “b”
on the generator shaft driven gear.
Left balancer driven gear inside
diameter “a”
59.010–59.028 mm (2.323–2.324
in)
Limit
59.100 mm (2.327 in)
Left balancer driven gear hous-
ing outside diameter “a”
58.925–58.960 mm (2.320–2.321
in)
Limit
58.900 mm (2.318 in)
a
a
Left-balancer-driven-gear-to-left-
balancer-driven-gear-housing
clearance
0.050–0.103 mm (0.0020–0.0041
in)
T
R
.
.
Left balancer weight bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
LOCTITE®
2
3
a
1