Yamaha E115A Service Manual page 165

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8. Remove the special service tools from
the propeller shaft.
9. Apply a load to the reverse gear by
installing the propeller 8, the spacer 9
(without the washer 0), then the washer
q as shown.
NOTE:
While turning the drive shaft clockwise 5–6
times to contact the gear evenly it tightens
propeller nut w to specified torque.
Propeller nut w:
5 N·m (0.5 kgf·m, 3.7 ft·lb)
61U5H11
10. Slowly turn the drive shaft clockwise and
counterclockwise, and measure the
backlash when the drive shaft stops in
each direction.
11. Add or remove shim(s) if out of specifica-
tion.
Reverse gear
0.80 mm (0.0315 in)
1.17 mm (0.0461 in)
M: Measurement
6S360200
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40 and
0.50 mm
12. Remove the special service tools, and
then install the water pump assembly.
Reverse gear backlash:
0.80–1.17 mm
(0.0315–0.0461 in)
Shim thickness
backlash
Less than
To be increased by
(0.98 – M) × 0.63
More than
To be decreased by
(M – 0.98) × 0.63
Backlash
1
2
3
4
5
6
7
8
9
6-28

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