Losing power after warming up

Discussion in 'Outboard Maintenance' started by galleta_loco, Sep 19, 2009.

  1. galleta_loco

    galleta_loco Well-Known Member

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    After my johnson 50 warms up it drops to half throtle.I thought it might be a coil so I changed it out,same thing runs like a scalded dog until it warms up.Anybody else experience such joy?
     
  2. Brett

    Brett > PRO STAFF <

    Ignition sensor coil going bad?
     

  3. galleta_loco

    galleta_loco Well-Known Member

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    Thats a possibility too [smiley=cry1.gif]
     
  4. Frank_Sebastian

    Frank_Sebastian Well-Known Member

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    How warm does it get? The laser aimed remote temperature sensors make this easy, but if you drip some water on and it turns to steam instantly you are too hot. Sometimes the thermostat can stop opening completly or a water passage in the engine can be partially clogged. If it does it abruptly a coil is possibly breaking down.

    Best regards,
    Frank_S