Yamaha F200B, Service Manual

Page: 178 / 579

5-49
ELEC
Electrical system
9. Check the wiring harness for continuity.
TIP:
Make sure that there is continuity between
terminal 4 of the throttle body assembly wir-
ing harness extension coupler
a
and one of
the terminals of the fuse holder coupler
b
.
10. Connect the engine ECM coupler.
NOTICE: Make sure that the rubber
seal is installed properly in the engine
ECM coupler.
11. Install the engine ECM, and then tighten
the engine ECM bolts to the specified
torque.
12. Install the engine ECM cover.
13. Connect the fuse holder coupler, and
then install the fuse holder.
14. Measure the vapor shut-off valve resis-
tance.
15. Remove the intake manifold (PORT).
See “Removing the intake manifold” (6-
17).
16. Remove the throttle body assembly. See
“Removing the throttle body assembly”
(6-23).
17. Remove the vapor shut-off valve from the
throttle body assembly.
18. Connect the special service tool 2 to the
vapor shut-off valve.
19. Apply the specified negative pressure to
the vapor shut-off valve.
20. Check that the vapor shut-off valve
opens and the negative pressure is
released when the battery leads are con-
nected to the vapor shut-off valve termi-
nals.
NOTICE: Do not connect the
battery leads to the vapor shut-off
valve terminals for more than a few
seconds
.
Wiring harness continuity:
a
Terminal 4–
b
Terminals 1–10 and 16–22
a
Terminal 5–
c
Terminal 85
Engine ECM bolt:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
c
9 10
22 21 20 19 18 17 16
8 7 6 5 4 3 2 1
c
b
a
85
4 5
Vapor shut-off valve resistance (reference
data):
Red/Yellow (R/Y)–Green/Black (G/B)
30.0–34.0
Ω
at 20 °C (68 °F)
G/B R/Y