Yamaha F200B, Service Manual

Page: 184 / 579

5-55
ELEC
Electrical system
12. Install the engine ECM, and then tighten
the engine ECM bolts to the specified
torque.
13. Connect the ignition coil couplers.
14. Install the engine ECM cover.
Checking the pulser coil
1. Remove the flywheel magnet cover.
2. Disconnect the pulser coil coupler
a
.
3. Connect the special service tool
1
.
4. Measure the pulser coil output peak volt-
age.
NOTICE: Check that the wiring
harness does not interfere with the
flywheel magnet.
TIP:
• When measuring the output peak voltage
under the cranking condition, remove the
clip from the engine shut-off switch to pre-
vent the engine from starting.
• When measuring the output peak voltage
under the unloaded condition, disconnect
the pulser coil coupler
a
.
5. Disconnect the special service tool.
6. Measure the pulser coil resistance.
7. Remove the engine ECM cover.
8. Remove the engine ECM, and then dis-
connect the engine ECM coupler
b
.
9. Check the wiring harness for continuity.
Engine ECM bolt:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
Test harness (2 pins)
1
: 90890-06867
a
G/W
G
W/B
B
W/R
B
a
1
W/R B
a 1
Pulser coil output peak voltage:
White/Red (W/R)–Black (B)
r/min
Unloaded Loaded
Cranking 1500 3500
DC V 3.0 2.7 14.5 17.8
Pulser coil resistance (reference data):
White/Red (W/R)–Black (B)
396.0–594.0
Ω
at 20 °C (68 °F)
b
b
a
2 1
16 15