Measurement And Adjusting The Final Gear Lash - Yamaha YFM4FAR Service Manual

REAR AXLE/FINAL DRIVE GEAR AND DRIVE SHAFT
MEASUREMENT AND ADJUSTING THE
FINAL GEAR LASH
Final gear lash measurement
1.Secure the gear case in a vise or another
supporting device.
2.Remove:
Drain plug
G
Gasket
G
3.Install:
A bolt of the specified size 1
G
(into the drain plug hole)
CAUTION:
Finger tighten the bolt until it holds the ring
gear. Otherwise, the ring gear will be
damaged.
4.Attach:
Gear lash measurement tool 1
G
Dial gauge 2
G
Gear lash measurement tool:
P/N. YM-01475, 90890-01475
a Measuring point is 31.46 mm (1.24 in)
5.Measure:
Gear lash
G
Gently rotate
engagement to engagement
Final gear lash:
0.1 ~ 0.2 mm (0.004 ~ 0.008 in)
NOTE:
Measure the gear lash at four positions. Rotate
the shaft 90° each time.
7 - 26
DRIV
the gear coupling
.
from