TROUBLESHOOTING
23-1
Troubleshooting
The following charts will assist you in finding and correcting minor mechanical and electrical problems with your boat. Problems are
listed in the order of the most-likely event to the least-likely.
To correct a problem, first determine what the symptom is. Start with the first cause and eliminate the possibility of each until the
problem is corrected. Because of the specialized skill and tools needed to correct major issues, we have not included that information. If you
suspect a problem not addressed here, please contact your MasterCraft dealer.
If you are experiencing a problem, before shutting down your boat check your surroundings. If suddenly
stopping the power would result in placing other boats in the vicinity in jeopardy, continue on until you can safely
slow or stop to analyze your situation. Always be aware of your surroundings and how your actions may impact
other boaters!
Problem Possible Cause Solution
Engine will not turn over. • Safety switch tether not connected. • Connect the safety switch tether.
• Throttle/shift control in gear. • Shift to neutral.
• Main circuit breaker open. • Re-set the circuit breaker.
• Battery terminal corroded. • Clean the battery terminals.
• Battery weak or worn out. • Charge or replace the battery.
• Loose or corroded battery wiring • Clean and tighten the battery
connectors. wiring connectors.
• Defective starter solenoid. • Replace the starter solenoid.
• Defective neutral safety switch. • Replace the neutral safety switch.
• Defective starter motor. • Replace the starter motor.
Engine turns over, but • Safety switch tether not connected. • Connect the safety switch tether.
will not start. • No fuel to the engine. • Turn the fuel valve to ON position
if boat is equipped with
ON-OFF switch.
• No fuel in the tank. • Fill the fuel tank.
• Fuel filter clogged. • Have dealer replace the fuel filter.
• Contaminated fuel. • Drain fuel properly and have
dealer replace the filter.
• Weak or shorted ignition coil. • Replace the ignition coil.
• Distributor problems. • See your dealer.
Engine is hard to start. • Flooded engine. • Start the engine at full throttle
and back off immediately.
• Plugged flame arrestor. • Clean the flame arrestor.
• Fouled spark plugs. • Replace the spark plugs.
• Loose coil or ignition wires. • Tighten coil or ignition wires.
• Battery cables loose or corroded. • Clean and tighten the battery
cables.
• Weak battery. • Charge or replace the battery.
• Ignition problems. • See your dealer.
Engine misses or idles rough. • Fouled spark plugs. • Have your dealer replace the
spark plugs.
• Loose or defective high-tension leads. • Have your dealer tighten or
replace the high-tension leads.
• Plugged PCV valve. • Have your dealer replace the
PCV valve.
• Weak ignition coil. • Have your dealer replace the
ignition coil.
• Vacuum leak. • See your dealer.
Poor boat performance. • Fouled spark plugs. • Have your dealer replace the
spark plugs.
• Contaminated fuel. • Drain fuel properly and have
dealer replace filter.
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