Yamaha F75F - Page 117

Starting unit and component
5-33
Checking the engine shut-off switch
1. Check:
• Engine shut-off switch continuity
Out of specification  Replace.
a. Disconnect the main wire harness
coupler or switch panel
coupler.
b. Turn the engine start switch to ON,
and then
check the engine shut-off
switch for continuity.
c. Turn the engine start switch to OFF.
d. Connect the main wire harness cou-
pler or switch panel coupler.
Starting unit and component
Checking the starter relay
The starter relay cannot be removed for testing
or replaced as a single unit because it is a com-
ponent part of the fuse box. See “Fuse box”
(2-11).
1. Check:
• Trouble code on the YDIS
See “Troubleshooting procedure” (4-4).
2. Measure:
• Main fuse input volta
ge
See step (2) in “Checking the main relay”
(5-18).
3. Measure:
• Starter fuse input voltage
Out of specification  See “Troubleshoot-
ing the power unit” (4-8).
Checking the engine start switch
1. Check:
• Engine start switch continuity
Out of specification  Replace.
a. Disconnect the main wire harness
coupler or switch panel cou
pler.
b. Check the engine start switch for con-
tinuity.
1. OFF
2. ON
3. START
Engine shut-off switch continuity
Clip
Te r mi na l
“a” “b”
Removed
Installed
a
b
3. START
2. ON
1. OFF
Starter fuse input voltage
12 V
Starter fuse “a”–Ground
1. OFF
2. ON
3. START
a
a
b
c
d
e
3. START
2. ON
1. OFF