Yamaha F400A 2022 - Shimming Check Sheet

Shimming (counter rotation model)
8-58
TIP:
• Make sure to drain the gear oil before measuring the backlash.
• If the backlash is within specification, shimming is not required.
• When assembling the original inner parts and a new lower case, shimming is required.
• When replacing the pinion, forward gear, reverse gear, bearings, drive shaft, or propeller shaft hous-
ing, shimming is required.
Shimming check sheet
Lower case deviation
Pinion height
Forward gear backlash
Reverse gear backlash
Propeller shaft free play
Serial number P F R Remarks
——
Measurements (mm)
Measuring point “a”
Measuring point “b”
Measuring point “c”
Measuring point “d”
Average
Round-down average
Measurements (mm)
Measuring point “a”
Measuring point “b”
Measuring point “c”
Measuring point “d”
Average
Round-down average
Measurements (mm)
Measuring point “a”
Measuring point “b”
Measuring point “c”
Measuring point “d”
Average
Round-down average
Measurement (mm)