Yamaha F100B Service Manual

BRKT
Bracket unit
7-39
60C5D11
Disassembling the gear pump
1. Remove the main valves
1
.
WARNING
Never look into the pump housing open-
ing because the main valves and power
trim and tilt fluid may be expelled out
forcefully.
NOTE:
To remove the main valves, cover the pump
housing with a clean cloth
2
, and then blow
compressed air through holes
a
and
b
while holding the cloth down.
Checking the valves
1. Check the operation of the tilt piston
absorber valves and the valves for dirt or
residue. Clean if necessary.
2. Check the valve seat
1
, down-relief
valve
2
, and valve pin
3
for dirt or resi-
due. Clean if necessary.
3. Check the shuttle pistons
4
, main valves
5
, and up-relief valve seat
6
for dirt or
residue. Clean if necessary.
Checking the filters
1. Check the gear pump filter
1
and down-
relief valve filters
2
for dirt or residue.
Clean if necessary.
S60C7420
S60C7470
S60C7475
S60C7480

Yamaha F100B Specifications

General

Brand	Yamaha
Model	F100B
Category	Outboard Motor
Language	English