Yamaha F100B Service Manual

LOWR
Lower unit
6-27
60C5D11
NOTE:
“P” is the deviation of the lower case dimen-
sion from standard. The “P” mark
a
is
stamped on the trim tab mounting surface of
the lower case in 0.01 mm units. If the “P”
mark is unreadable, assume that “P” is zero
and check the backlash when the unit is
assembled.
Example:
If “M3” is 46.85 mm and “M4” is 15.12 mm
and “P” is (–5), then
T3 = 62.50 + (–5)/100 – 46.85 – 15.12 mm
= 62.50 – 0.05 – 46.85 – 15.12 mm
= 0.48 mm
6. Select the pinion shim(s) (T3) as follows.
Example:
If “T3” is 0.44 mm, then the pinion shim is
0.42 mm.
If “T3” is 0.48 mm, then the pinion shim is
0.45 mm.
Selecting the forward gear shims
1. Turn the taper roller bearing outer race
1
two or three times to seat the rollers,
and then measure the bearing height
(M1) as shown.
NOTE:
• Select the shim thickness (T1) by using the
specified measurement(s) and the calcula-
tion formula.
• Measure the bearing outer race at three
points to find the height average.
2. Calculate the forward gear shim thickness
(T1) as shown in the examples below.
NOTE:
“F” is the deviation of the lower case dimen-
sion from standard. The “F” mark
a
is
stamped on the trim tab mounting surface of
the lower case in 0.01 mm units. If the “F”
mark unreadable, assume that “F” is zero
and check the backlash when the unit is
assembled.
Calculation formula:
Pinion shim thickness (T3) =
62.50 + P/100 – M3 – M4
Calculated numeral
at 1/100 place
Rounded numeral
1, 2 0
3, 4, 5 2
6, 7, 8 5
9, 10 8
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
Shimming plate
2
: 90890-06701
Digital caliper
3
: 90890-06704
F+5
R-1
P+2
S60C6345

Yamaha F100B Specifications

General

Brand	Yamaha
Model	F100B
Category	Outboard Motor
Language	English