Backlash Measurement (F15A/F9.9C); Forward Gear - Yamaha F15A Service Manual

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BACKLASH MEASUREMENT (F15A/F9.9C)

BACKLASH MEASUREMENT (F15A/F9.9C)
NOTE:
9 Do not install the water pump compo-
nents when measuring the backlash.
9 Measure both the forward and reverse
gear backlashes.
9 If both the forward and reverse gear back-
lashes are larger than specification, the
pinion gear may be too high.
9 If both the forward and reverse gear back-
lashes are smaller than specification, the
pinion gear may be too low.
9 If either of these conditions exist, then
check the pinion gear shim(s) selection.

Forward gear

1. Measure:
9 Forward gear backlash
Out of specification → Adjust.
Forward gear backlash:
0.19 ~ 0.86 mm (0.007 ~ 0.034 in)
Measurement steps:
8 Position the bearing housing puller
so that it pushes against the propeller
shaft.
Bearing housing puller claw:
YB-06234/90890-06503
Universal puller:
YB-06117
Stopper guide plate:
90890-06501
Center bolt:
90890-06504
8 Set the lower unit upside down.
Center bolt:
5 Nm (0.5 m•kg, 3.6 ft•lb)
6-23
E