STARTER MOTOR 31100-95J00

Function and Technical Context

The starter motor is the electrical component responsible for turning the outboard motor’s crankshaft until it reaches the RPM required for combustion to occur and the engine to start on its own. It operates within the ignition and electric starting system, drawing power directly from the boat’s battery when the ignition key or start button is activated. This replacement part, identified by part numbers 31100-95J00 and PH130-0077, is compatible with a wide range of Suzuki and Johnson outboard motors, covering everything from low-power engines to larger displacement units. A faulty starter motor causes the outboard to fail to turn over, fail to start, or start intermittently, leaving the boat inoperable at the most critical moment. Its proper functioning is therefore essential for the reliability and safety of any trip out to sea.

When should this part be replaced?

The most common symptoms of a faulty starter motor are: the outboard motor does not respond when the key is turned, a clicking or clacking sound is heard without the motor turning, the starter runs slowly or irregularly, or the drive pinion does not retract properly after starting. Continuous exposure to moisture and sea salt accelerates the deterioration of the internal contacts, the commutator, and the brushes; therefore, it is recommended to inspect the starter motor during every seasonal maintenance check and replace it at the first signs of failure. Replacing this component as a preventive measure, rather than waiting for a total breakdown, prevents you from being stranded at sea without a starter and avoids the high costs of on-water assistance.

Compatible Johnson/Evinrude Engines

Equivalent Manufacturer Part Numbers