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Yamaha 150 ignition problem

Old 03-11-2014, 11:47 AM
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Default Yamaha 150 ignition problem

I have a 2007 Yamaha 150 4 stroke. The ignition switch is intermittent, once off and I try to restart, it may take 6 or more tries before it connects, and when it does, it shuts down my Lowrance GPS. Tried spraying the connections, but problem persists.
Old 03-11-2014, 01:12 PM
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You have an F150TLR or F150TXR.

Sounds like more of an electrical connectivity issue than a switch or ignition issue. Remove and clean every connection between the starting battery and the motor. Positive and ground side. A green scotch brite pad works well.

This presumes the battery is in good condition. Almost any auto parts store will load test it for you.

Start by doing a voltage drop test however to confirm the issue.

Old 03-11-2014, 01:30 PM
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Are the battery cables that go from the engine to the battery, junction post, switch, OEM Yamaha?
If so, I would imagine your V.D.D.T. will show that those need to be replaced.

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