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  1. B

    Carburetor

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    Carburetor

    For all three carburetors I presume.
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    Carburetor

    Good luck with that!
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    Initial Jetting on Yamaha 50hp 4 stroke outboards

    The base settings for the idle mixture screws are as follows: Cylinders one, two and three = 2.25 turns outward +/- .5 turn. Cylinder four = 2.5 turns outward +/- .5 turn.
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    Initial Jetting on Yamaha 50hp 4 stroke outboards

    The only thing that needs to be tested with respect to the prime start device is that it moves outward when heated by the application of 12 volts to the two leads.
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    Initial Jetting on Yamaha 50hp 4 stroke outboards

    Just for the sake of discussions, and at the risk of me making an ass of myself, I will assume that you have a 2003 F50TLRB. The F50TLRB uses four different part number carburetors. Each using a different sized main jet. Each using a different float bowl. Hope you kept tabs on the latter as...
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    Initial Jetting on Yamaha 50hp 4 stroke outboards

    Are you saying "after all else fails follow the directions"?
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    Initial Jetting on Yamaha 50hp 4 stroke outboards

    Folks guard the identity of their motors more closely than does the national security agency with respect to top secret documents.
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    Water separater filter options

    I would not have a boat without a Racor filter with the clear plastic bowl on the bottom.
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    20 hp year

    The motor came with an aluminum-9 7/8” x 10 1/2” propeller installed. Without knowing anything more about your use of the motor I cannot hazard a guess as to what propeller should be used.
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    20 hp year

    That is Yamaha USA history that I think you are seeing. The 20SG was sold in other markets before it was offered in the USA.
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    20 hp year

    1988.
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    Stator problem

    You don't have to have a DVA or peak voltage adapter. Quite easy to convert what you see on your AC multimeter setting (RMS voltage) to peak voltage. Multiply what you see on on the AC multimeter setting by 1.414. Or you can simply use an online calculator...
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    20 hp year

    What are the numbers following the S?
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    2002 Yamaha 60hp 2 Stroke Oil Injection System Wiring Delete - Australian Model.

    Disconnecting the pink bullet connector should stop the motor from going into RPM reduction mode and the alarm from sounding.
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    2002 Yamaha 60hp 2 Stroke Oil Injection System Wiring Delete - Australian Model.

    As a bonus, study this diagram and let me know.
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    2002 Yamaha 60hp 2 Stroke Oil Injection System Wiring Delete - Australian Model.

    It's a shame. I hate to see it happen.
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    2002 Yamaha 60hp 2 Stroke Oil Injection System Wiring Delete - Australian Model.

    After you have perused the data above for a bit of time, let me know what you think should be done.
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    2002 Yamaha 60hp 2 Stroke Oil Injection System Wiring Delete - Australian Model.

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    2002 Yamaha 60hp 2 Stroke Oil Injection System Wiring Delete - Australian Model.

    Wish you had come here before deleting the oil injection system.
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