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    F150 Injector stuck open

    Nothing more to add. Just a failed injector. It happens. 19 years old. God only knows how many times it has opened and closed. Some folks wonder why stuff fails. I sometimes wonder how some stuff lasts as long as it does.
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    F150 Injector stuck open

    Not common but not unheard of either. There are a number of ways that injectors can fail. Failing in an open state is just one of the failure modes. Happens to all injectors of all models and brands. And by the way, a wiring fault can cause an injector to remain open. Injector may be...
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    Please help with HPDI issues

    Why no mention of the medium pressure pump? Low pressure pumps feed the medium pressure pump. Medium pressure pump feeds the high pressure pump. Insufficient fuel pressure from a lesser pump can and will affect the fuel pressure in a greater pump. For instance, if and when the low pressure...
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    She's started "making oil"

    "Making Oil" is a term for fuel getting into the oil system. If it is a recent phenomenon then I suspect that your cylinders might be in need of a decarboning treatment. That or your thermostat(s) are stuck in the open position.
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    2021 yamaha f200 4 stoke

    If the OP is in the USA, then I suspect that he has an F200LB, an F200XB/LF200XB or an F200XB2/LF200XB2.
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    2021 yamaha f200 4 stoke

    How can an answer be given without knowing what F200 we are talking about? Why, oh why, is it so very difficult to type a few more letters?
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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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