Yamaha F225A Service Manual page 221

Shimming (counter rotation model) / Backlash (counter rotation model)
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
6. If the "A" mark or "B" mark is unreadable,
measure the propeller shaft free play as
shown.
7. Install the shim(s) 6, thrust bearing 4,
propeller shaft 5, taper roller bearing 7,
and claw washer 8, and then tighten the
ring nut 9 to the specified torque.
Ring nut wrench: 90890-06578
Ring nut 9:
108 N·m (10.8 kgf·m, 78 ft·lb)
8. Measure the propeller shaft free play.
Reselect the propeller shaft shim(s)
(T'4), if out of specification.
Propeller shaft free play:
0.25–0.35 mm (0.010–0.014 in)
Magnet base 0: 90890-06705
Dial gauge set A: 90890-01252
69J3D11
Backlash
(counter rotation model)
Measuring the forward and reverse
gear backlash
1. Remove the water pump assembly.
2. Set the gearshift to the neutral position.
É
Shift rod push arm: 90890-06052
3. Install the special service tool so that it
pushes against the propeller shaft.
É
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
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.
6
1
2
3
4
5
6
7
8
9
6-60