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  • 2008 F150TLR keeps running...

    hello everyone!!! I'm new here and I have a pretty perplexing problem... I have a 08 Yamaha F150TLR that won't shut down when you turn off the key and/or pull the kill switch. The gauges all turn off but the motor just keeps on running...any ideas on whay it might be???

    thanks,
    mccdhash

  • #2
    Probably have a broken wire inside the 10 pin main harness between ignition switch and engine, probably need to replace harness.
    Regards
    Boats.net
    Yamaha Outboard Parts

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    • #3
      does the RPM change at all when you turn the key off?

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      • #4
        No change in the RPM when key is turned off... Does anyone have a wiring diagram for this motor? Also maybe a description of the wiring?? If I ground the "white" wire should that shut the engine off? I will be going out this morning with my multimeter to ring the wiring harness out.

        Thanks,
        mccdhash

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        • #5
          yes grounding the white wire from CDI should kill spark

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          • #6
            Here is harness chart
            DLO-10PIN-CH-RT.pdf
            Regards
            Boats.net
            Yamaha Outboard Parts

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            • #7
              no CDI on the F150.
              its a TCI system.
              to properly shut it down you need to remove the 12V from the ECU while applying a ground on the white wire.
              then the ecu will go into shut down.
              carefully test the key switch.

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