Yamaha YFM660FS, Supplementary Service Manual

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DRIV
REAR CONSTANT VELOCITY JOINT/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
●
Gasket
3.Install:
●
A bolt of the specified size
1
(into the drain plug hole)
CAUTION:
Finger tighten the bolt until it holds the ring
gear. Otherwise, the ring gear will be dam-
aged.
4.Attach:
●
Gear lash measurement tool
1
●
Dial gauge
2
a
Measuring point is 22 mm (0.87 in)
Gear lash measurement tool:
P/N. YM-01231, 90890-01231
5.Measure:
●
Gear lash
Gently rotate the gear coupling from engage-
ment to engagement
.
NOTE:
Measure the gear lash at four positions. Rotate
the shaft 90° each time.
Final gear lash:
0.1 ~ 0.2 mm (0.004 ~ 0.008 in)