Selecting The Reverse Gear Shims; Backlash (F100C); Measuring The Forward Gear Backlash - Yamaha F100C Service Manual

Calculation formula:
Forward gear shim thickness (T1) =
24.50 + F/100 – M
Example:
If "M" is 24.00 mm and "F" is (+5), then
T1 = 24.50 + (+5)/100 – 24.00 mm
= 0.50 + 0.05 mm = 0.55 mm
If "M" is 24.00 mm and "F" is (–5), then
T1 = 24.50 + (–5)/100 – 24.00 mm
= 0.50 – 0.05 mm = 0.45 mm
3. Select the forward gear shim(s) (T1) as
follows.
Calculated numeral
at 1/100 place
1, 2
3, 4, 5
6, 7, 8
9, 10
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
Example:
If "T1" is 0.55 mm, then the forward gear
shim is 0.52 mm.
If "T1" is 0.45 mm, then the forward gear
shim is 0.42 mm.

Selecting the reverse gear shims

NOTE:
The F100C does not contain reverse gear
shims, therefore shimming is not necessary.
60C5D11
Shimming (F100C) / Backlash (F100C)
Rounded numeral
0
2
5
8

Backlash (F100C)

Measuring the forward gear backlash

1. Remove the water pump assembly.
2. Set the gearshift to the neutral position.
Shift rod push arm: 90890-06052
3. Install the special service tool so that it
pushes against the propeller shaft.
NOTE:
Tighten the universal puller or center bolt
while turning the drive shaft until the drive
shaft can no longer be turned.
Bearing housing puller claw L 1:
90890-06502
Stopper guide plate 2: 90890-06501
Center bolt 3: 90890-06504
6
1
2
3
4
5
6
7
8
9
6-56