Yamaha YFM45FAT Supplementary Service Manual page 53

REAR CONSTANT VELOCITY JOINTS, FINAL DRIVE
1
2
GEAR AND DRIVE SHAFT
4. Measure:
• gear lash
NOTE:
• Secure the gear case with the ring gear bear-
ing housing side facing down.
• Measure the gear lash at four positions.
Rotate the shaft 90° each time.
Final gear lash adjustment
1. Remove:
• bearing housing 1
3
• ring gear shim 2
• ring gear 3
2. Adjust:
• gear lash
M MMM
a. Select suitable shim and thrust washer
Too little gear
lash
Too large gear
lash
Thickness (mm)
L LLL
– 45 –
Gently rotate the gear coupling from
engagement to engagement
Final gear lash
0.1 ~ 0.2 mm (0.004 ~ 0.008 in)
M MMM M M MMM M M MMM M
using the following chart.
Reduce shim thick-
ness.
Increase shim thick-
ness.
Ring gear shim
L LLL L L LLL L L LLL L
DRIV
.
M MMM M M MMM M MMM
0.25 0.30 0.35
0.40 0.45 0.50
L LLL L L LLL L LLL