SELVA MARINE Fin Whale 225 EFI, Service Manual

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Ignition and ignition control
system
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Checking the ignition spark
1. Remove the ECM cover.
2. Remove the ignition coils.
NOTE:
To prevent the engine from starting when
cranking it, be sure to remove all of the igni-
tion coils or disconnect all of the injector cou-
plers.
3. Connect an ignition coil assembly to the
special service tool.
4. Crank the engine and check the spark. If
the spark is weak, check the ignition sys-
tem.
WARNING
• Do not touch any of the connections of
the special service tool.
• Be sure to install the special service tool
to the ignition coil so that sparks do not
leak out.
• Keep flammable gas or liquids away,
since this test can produce sparks.
NOTE:
The ignition spark can also be checked using
the
“ Stationary test ” of the YDIS.
5. Install the ignition coils.
6. Install the ECM cover.
NOTE:
Connect the injector couplers.
Checking the ignition coil input
voltage
1. Disconnect the ignition coil coupler.
2. Turn the engine start switch to “ ON, ” and
then measure the input voltage at the
ignition coil coupler (wiring harness end).
Check the wiring harness if below specifi-
cation.
3. Turn the engine start switch to “ OFF. ”
4. Connect the ignition coil coupler.
Checking the crank position sensor
1. Remove the flywheel magnet cover.
2. Disconnect the crank position sensor
coupler.
Ignition tester: 90890-06754
S6AL8090
Ignition coil input voltage:
Red/yellow (R/Y) – Black (B)
12 V (battery voltage)
R/Y B
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Wiring harness routing / Ignition and ignition control system