Yamaha Rhino 450 YXR45FAV, Service Manual

Page: 218 / 413

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ENG
MIDDLE GEAR
INSTALLING THE MIDDLE DRIVE PINION
GEAR SHAFT
1. Tighten:
• middle drive pinion gear nut
1
NOTE:
Secure the middle drive shaft in the vise with a
clean rag.
2. Lock the threads with a drift punch.
New
T
R
.
.
145 Nm (14.5 m · kg, 105 ft · lb)
MEASURING THE MIDDLE GEAR
BACKLASH
1. Measure:
• gear lash
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
a. Temporarily install the right crankcase.
b. Wrap a rag
2
around a screwdriver
3
, and
then insert it into the installation hole
1
of
the speed sensor in the right crankcase to
hold the middle driven pinion gear.
c. Attach the gear lash measurement tool
3
and dial gauge
4
.
a
8.11 mm (0.32 in)
d. Measure the gear lash while rotating the
middle driven pinion gear back and forth.
NOTE:
Measure the gear lash at 4 positions. Rotate
the middle driven pinion gear 90
° each time.
e. If the gear lash is incorrect, adjust the gear
lash by middle driven pinion gear shims
and/or middle drive pinion gear shim(s).
▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
Middle gear lash
0.1 ~ 0.3 mm (0.004 ~ 0.012 in)
Gear lash measurement tool
P/N. YM-01467, 90890-01467