Yamaha F115 AETL [426/709] Shimming regular rotation models for worldwide

6-63

LOWR

SHIMMING (REGULAR ROTATION MODELS)

(FOR WORLDWIDE)

SELECTING THE FORWARD GEAR

SHIMS

NOTE:

Select the shim thickness (T1) by using the

specified measurement(s) and the calcula-

tion formula.

Select:

• Shim thickness (T1)

Selecting steps

(1) Measure (M1).

NOTE:

• Turn the roller bearing outer race two or

three times so the rollers seat. Then, mea-

sure the height of the bearing, as shown.

• Perform the same measurement at three

points on the roller bearing outer race.

• Find the average of the measurements

(M1).

Shimming plate ........................ 1

90890-06701

Digital caliper ............................ 2

90890-06704

6890

6900

(2) Calculate the forward gear shim thick-

ness (T1).

NOTE:

“F” is the deviation of the lower case

dimension from standard. It is stamped on

the trim tab mounting surface of the lower

case in 0.01-mm units. If the “F” mark is

missing or unreadable, assume an “F”

value of “0”, and check the backlash when

the unit is assembled.

Forward gear shim thickness (T1)

(T1) = 24.6 + F/100 – M1

6910