Yamaha F200B, Service Manual

Page: 182 / 579

5-53
ELEC
Electrical system
Ignition unit and component
Checking the ignition spark
• Make sure to install the special service
tool to the ignition coil so that sparks do
not leak out.
• Keep flammable gas or liquids away,
because this test can produce sparks.
1. Remove the engine ECM cover.
2. Remove the ignition coils.
3. Connect the special service tool 1 to an
ignition coil.
TIP:
Repeat steps 3–5 for each ignition coil.
4. Check the ignition spark using the YDIS
“Stationary test.” See “Function” (4-2).
WARNING! Do not touch any of the
connections of the special service
tool.
5. Disconnect the special service tool.
6. Install the ignition coils, and then tighten
the ignition coil bolts to the specified
torque.
7. Install the engine ECM cover.
Checking the ignition coil
1. Remove the engine ECM cover.
2. Disconnect the ignition coil couplers
a
.
3. Turn the engine start switch to ON, and
then measure the input voltage at the
ignition coil coupler.
4. Turn the engine start switch to OFF.
5. Remove the engine ECM, and then dis-
connect the engine ECM coupler
b
.
6. Remove the intake manifold (STBD).
See “Removing the intake manifold” (6-
17).
7. Remove the fuse holder 1 , and then dis-
connect the fuse holder coupler
c
.
Ignition tester
1
: 90890-06754
Ignition coil bolt:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
OK
1
Ignition coil input voltage:
Red/Yellow (R/Y)–Black (B)
12.0 V (battery voltage)
R/Y B
a
a
b