In colder weather, your boat may require a little more choke than usual to start. Before tearing apart your marine engine, double-check that you are performing the correct starting sequence for your boat. Depending on your engine type, you may need to choke the motor by pushing the key into the ignition or pulling out the manual choke knob on the engine. Starting Sequence ErrorsĮven the most seasoned boaters make mistakes now and then. If your boat has an ignition interrupt switch, make sure it is in the “on” position. If the safety lanyard has become disconnected for any reason, your boat engine may crank, but not fire, or it may not turn over at all.

Most modern boats come equipped with a safety lanyard or ignition interrupt switch that must remain connected while the boat is running. In the excitement of cruising across the water, it is easy to forget to disengage the safety features that prevent your boat from starting up. Consider this list of common reasons your boat engine won’t start to identify and correct the problem quickly. If any of these elements are missing due to broken or damaged parts, your engine may not turn over and will have trouble starting. Boat engines need ignition, fuel, air, compression and exhaust to start up and run smoothly.

Rely on a High-Performance Engine in Your Formula BoatĬommon Causes and Solutions for a Boat Engine That Won’t StartĪlthough boat engines have become more complex as technology advances, most marine engines still operate based on the same simple principles.Improper Motor Timing and Synchronization Common Causes and Solutions for a Boat Engine That Won’t Start.

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