Measuring And Adjusting The Final Gear Lash - Yamaha 2004 YXR660 Service Manual

REAR CONSTANT VELOCITY JOINTS, FINAL DRIVE
GEAR AND DRIVE SHAFT
MEASURING AND ADJUSTING THE FINAL
GEAR LASH
Measuring the final gear lash
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
Gear lash measurement tool
P/N. YM-01467, 90890-01467
a Measuring point is 31.1 mm (1.22 in)
5. Measure:
• gear lash
Gently rotate the gear coupling from
engagement to engagement
Final gear lash
0.1 ~ 0.3 mm (0.004 ~ 0.012 in)
NOTE:
Measure the gear lash at four positions. Rotate
the shaft 90° each time.
7 - 32
DRIV
.