Measurement The Final Gear Lash - Yamaha YFM7FGPW Service Manual

REAR CONSTANT VELOCITY JOINTS AND FINAL
1
3
2
a
DRIVE GEAR
EBS00193

MEASUREMENT 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:
• final gear backlash band 2
• dial gauge 3
Final gear backlash band
90890-01511
a Measuring point is 31.5 mm (1.24 in)
5. Measure:
• gear lash
Gently rotate the coupling gear from
engagement to engagement.
Final gear lash
0.10 ~ 0.20 mm
(0.0039 ~ 0.0079 in)
NOTE:
_
• When measuring the gear lash, be sure the
right side (gear oil level check bolt side) of
the final gear case assembly is facing down-
ward.
• Measure the gear lash at four positions.
Rotate the shaft 90° each time.
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DRIV