Yamaha F25 [256/444] Shimming except for usa and canada

6-25

LOWR

SHIMMING (EXCEPT FOR USA AND CANADA)

SHIM SELECTION

(EXCEPT FOR USA AND CANADA)

Pinion gear shim

NOTE:

Find the pinion gear shim thickness (T3) by

selecting shims until the specified measure-

ment (M) is obtained with the special tool.

1. Install:

● Pinion height gauge

● Drive shaft

● Drive shaft bearing

NOTE:

● Attach the pinion height gauge to the

drive shaft so that the drive shaft is cen-

tered in the gauge’s hole.

● After the wing nuts contact the fixing

plate, tighten them another 1/4 of a turn.

2. Install:

● Pinion gear

● Pinion gear nut

3. Measure:

● Measurement (M)

NOTE:

● Measure the clearance between the pin-

ion height gauge and the pinion gear as

shown.

● Perform the same measurement at three

points on the pinion gear.

● Find the average of the measurements

(M).

Pinion height gauge:

90890-06702

Drive shaft holder:

90890-06517

Pinion gear nut:

50 Nm (5.0 m • kg, 36 ft • lb)

Digital caliper:

90890-06704