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    power trim removal of center cylinder

    What is the engine serial number?
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    04 Yamaha LF225 4-stroke- "Oil leak"

    If you believe it to be the top oil seal remove the flywheel to see how far out the seal has moved. It might be possible to tap it back in place. Then fabricate a retainer to hold it there.
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    04 Yamaha LF225 4-stroke- "Oil leak"

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    Marine Sea Foam

    There are no carburetors on any Yamaha 300 HP two stroke models.
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    2001 200hp HPDI wont run, rebuilt pump, changed all filters, I'm stuck

    Did the pump rebuilder pressure test the pump? If the pump is not outputting rated pressure while it is being supplied with the gasoline it requires, what else could it be? Pressure regulator being part of the pump of course. Who rebuilt the pump?
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    No black/yellow kill wire on 9.9. 4-stroke

    This is from a 2007 Tohatsu owner's manual for a 9.9 four stroke. There has to be wires from either the lanyard kill switch of the push to stop switch at the end of the tiller handle.
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    No black/yellow kill wire on 9.9. 4-stroke

    How are you stopping the motor?
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    2021 yamaha f200

    What is your mechanic telling you?
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    2021 yamaha f200

    To what RPM is the motor reaching? Sounds like you might have a propeller problem.
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    2021 yamaha f200

    The main engine harness has ten pin connectors at each end. One of those pins in the connector being used for Yamaha motors that have have a choke system for fuel enrichment. Your new motor, having fuel injection, does not use the wire for the choke. Pushing your key in when starting the...
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    Tilt / Trim Motor Torque Specs

    Does the use of the word pedant make one one?
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    Merc 115 4 strokes 2001 ECU/fuel pump problem

    With the pump running and the motor off (say at key on but prior to start) the pump pressure will be at its highest. Maybe 40 psi or a bit higher. Start and run the motor at idle RPM and the fuel pressure should drop. Maybe to around 36 psi or so. Increase the RPM and the fuel pressure will...
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    Tilt / Trim Motor Torque Specs

    Yamaha does not give a range.
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    Tilt / Trim Motor Torque Specs

    From Yamaha and Mercury Marine
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    Tilt / Trim Motor Torque Specs

    Torque is expressed in pound feet. Not foot pounds. Many get it backwards.
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    Tilt / Trim Motor Torque Specs

    2.9 pound feet
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    Tilt / Trim Motor Torque Specs

    2.9 pound feet. 4 Newton meters.
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    Merc 115 4 strokes 2001 ECU/fuel pump problem

    OP's motor is of Yamaha origin I believe. Power comes from the ECU for the injectors and a couple of other components. Or it is supposed to anyway.
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    Merc 115 4 strokes 2001 ECU/fuel pump problem

    Of course it is possible to power the fuel injectors (and other components) that normally get their power via the ECU. Using a simple relay as you suggest. One word of caution is that you would want the relay control circuit to deactivate the relay power circuit at any time that the motor...
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    question on Yamaha ELG 40 carb rebuild

    I don't think the rotational orientation matters. The Yamaha service manual says nothing about how it is to be inserted into the carburetor.
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