9-1
© 2016 Indmar Marine Engines
Section Nine
TROUBLESHOOTING
Before operating or maintaining the engine, review
“Safety” on page 1-1.
Your Indmar engine is manufactured under strict quality
control standards. It is tested along with a full spectrum
gas analysis. It is operating at optimum levels before it is
shipped.
Difficulties can occur. Use the following problem
diagnosis charts to help pinpoint problems. In most
cases, you will need the assistance of your Indmar
dealer to correct the cause of the problem.
Poor Gas Mileage
x
Fouled spark plugs
x
Plugged flame arrestor
x
Poor driving habits
x
Plugged positive crankcase ventilation system
x
Black smoke at exhaust outlet shows rich gas mixture
x
Excessive boat loads (weight)
x
Damaged or dirty hull
x
High altitude adjustment required
x
Adjustment for temperature extremes required
Hard Cold Start
x
Weak or discharged battery
x
Loose coil or ignition wires
x
Engine flooded
x
Fouled spark plugs
x
Lack of fuel
x
Battery cables loose or corroded
x
Loose electrical grounds at engine
x
Ignition switch problems
x
Dirt or water in fuel system
x
Engine needs tune-up
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