Yamaha BT1100 2002 Service Manual page 187

MIDDLE GEAR
Hundredths
0, 1, 2
3, 4, 5, 6
7, 8, 9
Shims are supplied in the following thickness.
Middle drive pinion
gear shim:
Thickness (mm)
4-82
ENG
Rounded value
0
5
10
0.10 ; 0.15; 0.20