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    Fuel feed pump not on/ Lower bottom carb dumping fuel out the front

    I would agree with 99yam that the float valve should not be allowing gasoline to flow unhindered into the carburetor.
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    Fuel feed pump not on/ Lower bottom carb dumping fuel out the front

    The electric fuel pump is plumbed to all six carburetors at the top of each carburetor. The pressure side of the pump that is. The electric fuel pump is also plumbed to the bottom of carburetor #6. The inlet side of the pump.
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    2001 Yamaha 3hp (3MSHZ)

    What does your owner's manual say? What does the Yamaha parts catalog indicate?
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    1990 Yamaha carb float adjustment!

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    Too big a battery harmful?

    Yamaha for one lists minimum and maximums for batteries. Seems to be based on the type of alternator being used. Looking at a DF50 owner's manual I see only a minimum specification. With mention of paralleling multiple batteries. But no caution as to there being too many.
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    Yamaha 130 v4 idle mix screws

    Yamaha, as far as I know, does not make carburetors. Keihin or Mikuni does.
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    Yamaha 130 v4 idle mix screws

    Here is what Yamaha has to say img uploads
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    Yamaha 130 v4 idle mix screws

    Yamaha's term for an idle mixture jet is "screw, air adjusting". It does allow some air in as the screw is turned outward. Air that is mixed with gasoline. As the increased air and gasoline mixture gets into the combustion chamber it results in a richer fuel/air mixture.
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    1988 Yamaha ELG 40 , trying to change water pump/impeller

    I am seeing 6 bolts.
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    MPH not showing on Gage OX66 motor

    https://www.veethree.com/wp-content/uploads/2021/01/Trouble-Sht-Pitot-Speedometer_R4.pdf
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    MPH not showing on Gage OX66 motor

    Transducer (or pressure sensor) is located with the gauge itself.
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    MPH not showing on Gage OX66 motor

    Pitot tube. Water compresses but barely so. Water pressure in the Pitot tube is converted to air pressure which then causes the needle or digits on a gauge to change.
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    Yamaha 704 binnacle remote question

    You are welcome oh yee of little faith.
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    Can I use a 3 wire PTT motor to replace a 2 wire PTT motor and keep the relays?

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    Can I use a 3 wire PTT motor to replace a 2 wire PTT motor and keep the relays?

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    Yamaha T60 gauge wiring

    I will presume that you have a T60LB. Yes and no. Yes to a temperature sensor to which a Yamaha Command Link tachometer can be connected. No to a temperature sensor to which a standalone analog temperature gauge can be installed. No to a sender for an oil pressure gauge. Some folks have...
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    9.9 hp yamaha 4 stroke crank pressure

    It points to a problem.
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    Yamaha 704 binnacle remote question

    Let us know how you like it. Are you naturally a skeptic?
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    Yamaha 9.9 wierd choke-ish behavior

    What is the position of the choke plate when it starts to run erratically?
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    Yamaha 704 binnacle remote question

    Call a Yamaha US dealer. Have them look up 704-48205-T0-00 in their Yamaha parts system. Ask them to tell you how many that Yamaha USA has in stock.
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