Yamaha F50D Servise Manual page 271

6. Place the pinion facing upward and hold
it in the upright position.
7. Turn the drive shaft 10 times or more to
seat the taper roller bearing.
8. Tighten the bolts 3 in 4 stages to the
specified torque so that the distance b
between the special service tools 1 and
2 becomes equal.
1
b
2 3
Pinion height gauge bolt 3:
1st: 1 N·m (0.1 kgf·m, 0.7 ft·lb)
2nd: 2 N·m (0.2 kgf·m, 1.5 ft·lb)
3rd: 3 N·m (0.3 kgf·m, 2.2 ft·lb)
4th: 4 N·m (0.4 kgf·m, 3.0 ft·lb)
9. Check the gap a between the pinion 4
and the special service tool 1 again.
a
TIP:
If there is no gap, the pinion shim(s) (T3) may
not have been installed.
b
4
a
1
10. Measure the gap between the pinion 4
and the special service tool 1. When
measuring the gap, insert the end of the
thickness gauge straight into the gap at
the measurement point. Do not insert the
thickness gauge at an angle.
4
1
TIP:
Measure the gap at 4 points: c, d, e, and
9
f.
9 Note the measurement data in the shim-
ming check sheet.
11. Determine the gap average, and then
truncate it by dropping the numbers after
the 1/100 place without rounding.
Example:
Measurement
0.21
point c
Measurement
0.21
point d
Measurement
0.20
point e
Measurement
0.18
point f
Average 0.2000
Truncated
0.20
average (M)
Shimming (FT50C)
c
f
d
e
(mm)
0.20 0.19
0.20 0.19
0.19 0.19
0.18 0.18
0.1925 0.1875
0.19 0.18
8-72
0
1
2
3
4
5
6
7
8
9
10
A