Yamaha F400A 2022 - Shimming (Regular Rotation Model); Shimming Workflow

Shimming (regular rotation model)
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Shimming (regular rotation model)
Shimming workflow
1. Disassemble the lower unit.
2. Select the forward gear shim (T1) and reverse gear shims (T2).
3. Install the forward gear and pinion temporarily.
4. Select the pinion shims (T3).
7. Within specification?
11. Select the propeller shaft
shims (T4).
12. Assemble the lower unit.
5. Install the reverse gear and propeller shaft.
6. Measure the backlash.
9.
8. NO
10. YES
Repeat steps from the selection of the
forward gear shim (T1) and reverse gear
shims (T2).
1. Disassemble the lower unit.
2. Select the forward gear shim (T1) and
reverse gear shims (T2).
3. Install the forward gear and pinion
temporarily.
4. Select the pinion shims (T3).
5. Install the reverse gear and propeller
shaft.
6. Measure the backlash.
7. Within specification?
8. No
9. Repeat steps from the selection of the
forward gear shim (T1) and reverse gear
shims (T2).
10. YES
11. Select the propeller shaft shims (T4).
12. Assemble the lower unit.