Yamaha F200B, Service Manual

Page: 177 / 579

5-48
5
4. Turn the engine start switch to ON, and
then measure the input voltage between
the terminal
a
and ground, and the ter-
minal
b
and ground.
5. Measure the input voltage between the
terminals
b
and
c
.
6. Turn the engine start switch to OFF.
7. Install the high-pressure fuel pump relay,
and then install the relay cover and fuse
cover.
8. Install the intake manifold (STBD). See
“Installing the intake manifold” (6-18).
Checking the vapor shut-off valve
1. Remove the intake silencer. See
“Removing the intake silencer” (6-17).
2. Disconnect the throttle body assembly
wiring harness extension coupler
a
.
3. Turn the engine start switch to ON, and
then measure the input voltage at the
throttle body assembly wiring harness
extension coupler.
4. Turn the engine start switch to OFF.
5. Remove the intake manifold (STBD).
See “Removing the intake manifold” (6-
17).
6. Remove the fuse holder 1 , and then dis-
connect the fuse holder coupler
b
.
7. Remove the engine ECM cover.
8. Remove the engine ECM, and then dis-
connect the engine ECM coupler
c
.
High-pressure fuel pump relay input volt-
age:
Terminal
a
–Ground
Terminal
b
–Ground
12.0 V (battery voltage)
High-pressure fuel pump relay input
voltage:
Terminal
b
–Terminal
c
12.0 V (battery voltage)
a
b
b
c
Vapor shut-off valve input voltage:
Red/Yellow (R/Y)–Ground
12.0 V (battery voltage)
R/Y
a
1
b
Fuel control unit and component