Backlash (Counter Rotation Model) - Yamaha F150A Service Manual

14. Turn the shift rod to the reverse position
c with the shift rod push arm.
15. Slowly turn the drive shaft clockwise and
counterclockwise and measure the back-
lash when the drive shaft stops in each
direction.
NOTE:
When measuring the reverse gear backlash,
turn the shift rod push arm towards the
reverse position c with force.
Reverse gear backlash:
0.23–0.58 mm (0.0090–0.0228 in)
16. Add or remove shim(s) if out of specifica-
tion.
Reverse gear
backlash
Less than
0.23 mm (0.0090 in)
More than
0.58 mm (0.0228 in)
M: Measurement
63P3F11
Shim thickness
To be decreased by
(0.41 – M) × 0.67
To be increased by
(M – 0.41) × 0.67

Backlash (counter rotation model)

Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
17. Remove the special service tools, and
then install the water pump assembly.
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