Backlash (F100B); Measuring The Forward And Reverse Gear Backlash - Yamaha F100C Service Manual

LOWR
3. Select the reverse gear shim(s) (T2) 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 "T2" is 0.53 mm, then the reverse gear
shim is 0.55 mm.
If "T2" is 0.50 mm, then the reverse gear
shim is 0.50 mm.

Backlash (F100B)

Measuring the forward and reverse
gear backlash
1. Remove the water pump assembly.
2. Set the gearshift to the neutral position.
Shift rod push arm: 90890-06052
6-29
Lower unit
Rounded numeral
2
5
8
10
3. Install the special service tool so that it
pushes against the propeller shaft.
NOTE:
Tighten the 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
4. Install the backlash indicator onto the
drive shaft (22.4 mm [0.88 in] in diame-
ter), then the dial gauge onto the lower
unit.
5. Set the lower unit upside down.
NOTE:
Install the dial gauge so that the plunger a
contacts the mark b on the backlash indica-
tor.
60C5D11