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twin F100 dont run at high speed

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  • twin F100 dont run at high speed

    hi there ,
    i have this twin set with F100 and they start and idle very nice and with load go up to 2500rmp and one shuts off and the other goes up to 4000rpm and shuts off .you start again they go good on idle but with load and speed they die again
    need help

  • #2
    Sounds like starving for fuel, does fuel primer bulb suck flat? check fuel pickup in gas tank, fuel hoses, filters and may need to clean carbs.
    Regards
    Boats.net
    Yamaha Outboard Parts

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    • #3
      measure the pressure on the fuel rail..

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      • #4
        F100 wiring harness

        has anybody got a blown engine and i can buy the wiring harness for this motor as i need two

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        • #5
          How did you mess up 2 harnesses?
          I believe you need to keep looking for your problems

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          • #6
            iam not looking for problems iam trying to fix the problem drongo as these motors when tilted were submerged in water and has a shot wire ,so i need two harness.please no stupid replies

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            • #7
              help

              You asked for help and then lots of people replied just like i was about to and then you proceed to add a twist to your story and add then show your lack of appreciation for there help.
              I don't understand?????

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              • #8
                Not much to understand other than "WINGNUT"

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                • #9
                  I take it these are the same motors you said you fixed 3 weeks ago by finally testing fuel pressures and replacing the fuel pumps, and then start a new thread about the same problems without including the info from other tread.
                  And now you start calling names.

                  GOOD LUCK WITH GETTING ANYONE TO RESPOND

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                  • #10
                    you have no idea ,as iam not a recreational fisherman ,i ran a charter service to small islands and i have not only one engine i have 8 of them and i have different problems all the time ,these engines have been washed by the waves when parked on the beach and it has happened twice and the engine wiring is short circuited including the battery lead which has turned black so i need new wiring loom if any of you have or know where i can get them'
                    thanks

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