Mercury Outboard Starter Problems

From outboard engine and electrical and electronics systems to engine and alarm issues, tilt and trim issues, this is the place to find information at the mercury outboard forum. If there is no start from the engine, there may be no spark present.

8 Cycle Engine Wiring Diagram

Sometimes, when i try to start the boat, the starter motor just spins freely, but it doesn't engage the engine or even try to turn the engine.

Mercury outboard starter problems. All you need to know about your outboard engine issues and good advice from your fellow boaters. How do i trouble shoot, and eventually repair or refurbish the starter motor for my 150 hp mariner outboard motor. Kinking a wire won't choke it off like a garden hose.

It should be 125 or so. If there is no voltage when the key is turned to the start position, there is a problem with the wire to the switch exits or a bad switch. If there is 12 volts to the large wire from the battery, and 12 volts to the small wire when the key is in the start position, the solenoid should click and there should be voltage on the other large terminal.

Reconnect the small wire to the solenoid. The solenoid on a mercury outboard motor is used to actuate the starter. The motor is a 1993 mariner 150 hp (made by mercury).

Put the starter back on the motor, hold the gauge against the wire to the starter, and crank it. The starter motor simply just spins. Though mercury 115 pro xs has already gained popularity for being such a durable and reliable outboard motor that delivers greater torque and performance, there are still chances of encountering some minor problems while cruising or riding this outboard motor on the water.

Check that there is plenty of gas in the gas tank and that all fluid levels are at the right level. Go to napa, get an amp tester that you hold against the wire. Make sure that all wires are connected properly.

You will find it draws very high current.

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