Selecting The Reverse Gear Shims - Yamaha F50A Service Manual

2. Install the taper roller bearing 1 to the
shim selecting tools.
NOTE:
Tighten the nut four turns after it contacts the
spring.
Forward gear shim selecting tools:
YB-34446-1 2, YB-34446-3 3,
YB-34446-4 4, YB-34446-15 5
3. Measure the clearance (M) between the
gauge pin and press plate.
4. Select the forward gear shims (T1).
62Y3A11
Shimming (F50) (for USA and Canada)
NOTE:
The sum of T1 and M should not be more
than M0.
Forward gear shim thickness (T1) =
M0 – M
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm

Selecting the reverse gear shims

1. Measure the backlash to find the neces-
sary shim thickness (T2). Add or remove
shims if out of specification. For measur-
ing procedures, see "Measuring the for-
ward and reverse backlash" in this
chapter.
NOTE:
Measure the backlash with the original
shim(s). If the original shim(s) is unavailable,
start with a 0.50 mm shim.
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
1
2
3
4
5
6
7
8
I
6-34