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    Yamaha 150 ox66 2003 overheats/alarm/limp-mode and has no t-stats

    After about 5 minutes at 3500 RPMs the alarm sounds and the engine goes into limp mode. I figure it's the overheat alarm as I can see a bit of what looks like steam coming from the engine- slight as it is. Plenty of oil in both tanks, also. The pee stream is strong and steady. I planned to test...
  2. C

    All 6 plugs get no spark

    2003 Yamaha 150 HP OX66: Is there a single source of power that supplies voltage to all 6 coils at the same time? I have no spark to any of the spark plugs. The engine spins strong but doesn't start. I can hear the fuel pump pressurize when the key is on, and then after some attempts to start...
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