Troubleshooting - ILMOR MV8 Owner's Manual

Section 10

TROUBLESHOOTING

The following chart is offered as assistance in identifying and correcting
minor issues that may occur. Problems are listed in the order of most-likely
to least-likely. Not all possible problems, causes and solutions can be listed
here.
When experiencing problems, check surroundings before shutting down
the engine. If suddenly stopping the power would result in placing other
boats and boaters in jeopardy, continue until it is safe(r) to slow or stop and
analyze the situation.
Always be aware of surroundings and how your actions may impact others.
Problem
Engine will not turn over. Safety switch tether not connected.
Engine turns over,
but will not start.
Engine misses or idles
rough.
© 5/2013 Ilmor Marine, LLC, Version 1.0
Possible Cause
Throttle/shift control in gear.
Main circuit breaker open.
50A circuit breaker open.
Battery terminal corroded.
Battery weak or worn out.
Loose or corroded battery wiring
connectors.
Defective starter solenoid.
Defective neutral safety switch.
Defective starter motor.
Safety switch tether not connected.
No fuel in the tank.
Fuel filter clogged.
Contaminated fuel.
Weak or shorted ignition coil.
No fuel to the engine.
Fouled spark plugs.
Loose or defective high-tension leads.
Plugged PCV valve.
Weak ignition coil.
Vacuum leak.
Potential Solution
Connect the safety switch tether.
Shift to neutral.
Reset the circuit breaker.
Reset the circuit breaker.
Clean the battery terminals.
Charge or replace the battery.
Clean and tighten the battery
wiring connectors.
Replace the starter solenoid.
Replace the neutral safety switch.
Replace the starter motor.
Connect the safety switch tether.
Fill the fuel tank.
Have dealer replace the fuel filter.
Drain fuel properly and have
dealer replace the filter.
Replace the ignition coil.
See certified Ilmor dealer.
Have dealer replace the spark
plugs.
Have dealer tighten or replace the
high-tension leads.
Have dealer replace the PCV
valve.
Have dealer replace the ignition
coil.
See certified Ilmor dealer.
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