Yamaha F6AMH, Service Manual

Page: 356 / 510

BACKLASH
BACKLASH
NOTE:
Both forward gear backlash and reverse
gear backlash be measured.
If both forward gear backlash and reverse
gear backlash are smaller than specified,
the pinion may be too low.
If either of these conditions exist, then
check the pinion shim selection.
MEASURING THE FORWARD GEAR
BACKLASH
Measure:
Forward gear backlash
Out of specification
Adjust
Measuring steps:
(1)Place the shift cam in neutral.
(2)Load the forward gear with the bearing
housing puller on the propeller shaft.
(3)Set the lower unit upside down.
(4)Attach the dial gauge on the lower
case, and make the dial gauge stem
contact the mark on the backlash
indicator.
(5)While pulling the drive shaft
downward, slowly turn the drive shaft
clockwise and counterclockwise then
measure the backlash when the drive
shaft stops at each direction.
Forward gear backlash:
0.88 - 1.26 mm (0.0346 - 0.0496 in)
Bearing housing puller:
YB-06234/NA
Universal puller:
YB-06117/NA
Center bolt:
2 N m (0.2 kgf m, 1.5 ft lb)
Backlash indicator:
YB-06265/90890-06706
Magnet base:
YU-34481/90890-06705
Magnet base attaching plate:
YB-07003/90890-07003
Dial gauge stand:
YU-03097/90890-01252
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