Losing power after warming up

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

  1. Sep 19, 2009 #1
    galleta_loco

    galleta_loco Well-Known Member

    108
    0
    341
    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?
     
    galleta_loco, Sep 19, 2009
    galleta_loco, Sep 19, 2009
  3. Sep 19, 2009 #2
    Brett

    Brett > PRO STAFF <

    7,350
    67
    1,903
    Ignition sensor coil going bad?
     
    Brett, Sep 19, 2009
    Brett, Sep 19, 2009

  5. Sep 19, 2009 #3
    galleta_loco

    galleta_loco Well-Known Member

    108
    0
    341
    Thats a possibility too [smiley=cry1.gif]
     
    galleta_loco, Sep 19, 2009
    galleta_loco, Sep 19, 2009
  6. Sep 21, 2009 #4
    Frank_Sebastian

    Frank_Sebastian Well-Known Member

    787
    2
    391
    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
     
    Frank_Sebastian, Sep 21, 2009
    Frank_Sebastian, Sep 21, 2009