Yamaha F40BED, Service Manual

Page: 342 / 537

LOWR
6-35
BACKLASH
E
(3) Install the backlash indicator onto the
drive shaft (16mm (0.63 in) diameter).
(4) Install the dial gauge onto the lower
unit and have the dial gauge plunger
contact the mark on the backlash indi-
cator.
(5) Slowly turn the drive shaft clockwise
and counterclockwise. When the drive
shaft stops in each direction, measure
the backlash.
2. Adjust:
• Forward gear backlash
Remove or add shim(s).
M : Measurement
Backlash indicator ........................
YB-06265/90890-06706
5
6
8
5
7
Magnetic base attaching plate ....
90890-07003
Dial gauge set ...............................
YU-03097/90890-01252
Magnetic base...............................
YU-34481/90890-06705
Forward gear
backlash
Shim thickness
Less than
0.2 mm (0.008 in) To be decreased by
(0.4 - M)
××××
0.53
More than
0.6 mm (0.024 in) To be increased by
(M - 0.4)
××××
0.53
Available shim thickness:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40 and
0.50 mm
6
7
8