Backlash (F50/F50A); Measuring The Forward And Reverse Gear Backlash - Yamaha F50A Service Manual

LOWR

Backlash (F50/F50A)

Measuring the forward and reverse
gear backlash
1. Remove the water pump assembly.
2. Set the gearshift to the neutral position.
È For USA and Canada
É For worldwide
Shift rod push arm: YB-06052
Shift rod push arm: 90890-06052
3. Install the special service tool so that it
pushes against the propeller shaft.
È For USA and Canada
É For worldwide
6-39
Lower unit
6
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 1: YB-06234
Universal puller 2: YB-06117
Bearing housing puller claw 3:
90890-06564
Stopper guide plate 4: 90890-06501
Center bolt 5: 90890-06504
4. Install the backlash indicator onto the
drive shaft (18 mm [0.71 in] in diameter),
then the dial gauge onto the lower unit.
NOTE:
Install the dial gauge so that the plunger a
contacts the mark b on the backlash indica-
tor.
Backlash indicator gauge 6: YB-06265
Backlash indicator 6: 90890-06706
Magnetic plate 7: YB-07003
Magnet base plate 7: 90890-07003
Dial gauge 8: YU-03097
Dial gauge set 8: 90890-01252
Magnet flexible stand 9: YU-34481
Magnet base 9: 90890-06705
62Y3A11