Yamaha F20A, Service Manual

Page: 260 / 444

6-28
E
LOWR
SHIMMING (EXCEPT FOR USA AND CANADA)
Example:
If M is “16.25 mm” and “F” is “+4”, then:
T1= 17.5 mm + (+4)/100 – 16.25 mm
= 17.5 mm + 0.04 – 16.25 mm
= 1.29 mm (0.051 in)
If M is “16.26 mm” and “F” is “–3”, then:
T1 = 17.5 mm + (–3)/100 – 16.26 mm
= 17.5 mm – 0.03 – 16.26 mm
= 1.21 mm (0.048 in)
3. Select:
●
Forward gear shim
Calculated numeral
Shim size to
use
More than or less than
1.00 1.10 1.0
1.10 1.20 1.1
1.20 1.30 1.2
1.30 1.40 1.3
1.40 1.50 1.4
Available shim thickness:
1.0, 1.1, 1.2, 1.3, and 1.4 mm
Reverse gear shim
NOTE:
Find the reverse gear shim thickness (T2) by
selecting shims until the specified measure-
ment (M) is obtained with the special tool.