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need help 2004 yamaha 115 trouble

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  • need help 2004 yamaha 115 trouble

    I have been trying to figure it out it started with a slight miss at 3/4 throttle it will set off the alarm and i shut it down for 5seconds and the alarm is off and ready to take off again and if you don't go over 30 mph about 4 thousand rpms it will run all day no problem.I first changed water pump and therostats .I had changed the plugs 3months ago .About 3 years ago i did away with oil injection and mix my own oil.thank you for any thoughts.

  • #2
    Do you have Yamaha gauges with warning indicators, if so what warning is showing on gauge?
    Regards
    Boats.net
    Yamaha Outboard Parts

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    • #3
      115 yamaha trouble

      Not other than rpm and speed fuel . But I pulled the plug sence i posted and they were wet so i got new ones and i ran it 52hundred rpm's for 3 miles and it fixed it seems like .No i have it on a 18ft express hippersport hull .

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