Yamaha F115A Service Manual page 472

LOWR
BACKLASH (COUNTER ROTATION MODELS)
6950
6B60
6B70
6B80
Measuring steps
(1) Set the shift rod into the neutral posi-
tion.
Shift rod wrench
YB-06052 / 90890-06052
(2) Load the reverse gear by installing the
propeller without the spacer and then
tighten the propeller nut.
Propeller nut
5 Nm (0.5 m • kgf, 3.6 ft • lb)
(3) Install the backlash indicator onto the
drive shaft (on the 22.4 mm (0.88 in)
diameter portion of the drive shaft).
Backlash indicator .................... 1
YB-06265 / 90890-06706
(4) Install the dial gauge onto the lower
unit and have the dial gauge plunger
contact the mark on the backlash indi-
cator.
Magnetic base attaching
plate ........................................... 2
YB-07003 / 90890-07003
Dial gauge set ........................... 3
YU-03097 / 90890-01252
Magnetic base........................... 4
YU-34481 / 90890-06705
(5) Set the lower unit upside down.
(6) Turn the shift rod into the reverse posi-
tion with the shift rod wrench.
(7) Turn the drive shaft clockwise until the
clutch dog is fully engaged.
(8) Turn the shift rod into the neutral posi-
tion with the shift rod wrench.
(9) Turn the drive shaft counterclockwise
approximately 30˚ more.
6-86
E