Yamaha F200B, Service Manual

Page: 186 / 579

5-57
ELEC
Electrical system
14. Check the wiring harness for continuity.
15. Connect the engine ECM coupler.
NOTICE: Make sure that the rubber
seal is installed properly in the engine
ECM coupler.
16. Install the engine ECM, and then tighten
the engine ECM bolts to the specified
torque.
17. Install the engine ECM cover.
18. Connect the air temperature sensor cou-
pler.
19. Install the flywheel magnet cover.
Checking the air pressure sensor
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 engine ECM cover.
6. Remove the engine ECM, and then dis-
connect the engine ECM couplers
b
and
c
.
7. Check the wiring harness for continuity.
Wiring harness continuity:
a
Terminal 1–
b
Terminal 23
a
Terminal 2–
b
Terminal 18
Engine ECM bolt:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
b
18
2 1
23
b
a
Air pressure sensor input voltage:
Orange (O)–Black (B)
4.75–5.25 V
a
B O
b
c
b c
18
48
36
3 2 1
a