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    2001 Yamaha 8hp 4 stroke

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    2001 Yamaha 8hp 4 stroke

    Yep.
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    2001 Yamaha 8hp 4 stroke

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    time to replace power trim relays on merc 90hp 2001 again?

    Easy enough to trouble shoot the relays. Swap the up and down relays. See if the problem moves from the failed side to the good side and vice versa.
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    time to replace power trim relays on merc 90hp 2001 again?

    See if you can find some solid state relays that have the current carrying capacity of the mechanical relays. Generally they have a much longer service life. I suspect once you see the price of the solid state gizmo it might make sense to carry a spare mechanical relay.
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    time to replace power trim relays on merc 90hp 2001 again?

    What is the serial number of the motor?
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    Your Best Technique for Rope Starting Merc 20hp EFI

    EFI with a choke?
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    F225 Yamaha- Lower unit bolts (from 30 to 25)

    It is all laid out for you in the applicable Yamaha parts catalog. For example
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    Your Best Technique for Rope Starting Merc 20hp EFI

    Interestingly enough, what is called a stator in some Mercury Marine models is now called an alternator by Mercury Marine for the batteryless EFI models. The stator being a part all alternators of course.
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    Decompression valve

    I am now wondering if these batteryless EFI's are inherently harder to pull start than non EFI models. It takes some mechanical energy to create the electrical energy needed to operate the ECU and electric fuel pump.
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    Decompression valve

    This thread talks about using an electric drill motor to crank the motor. https://forums.iboats.com/threads/your-best-technique-for-rope-starting-merc-20hp-efi.780631/
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    Decompression valve

    Suzuki may offer a conversion kit that adds electric start capability.
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    Decompression valve

    Seems some strength training might be in order.
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    Your Best Technique for Rope Starting Merc 20hp EFI

    I agree that motors can be like living animals. Each having their own preferences as to how they like to wake up. Since your model does not use a battery it relies upon the alternator to generate the electrical power needed by the ECU and the electric fuel pump. Permanent magnet alternators...
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    Your Best Technique for Rope Starting Merc 20hp EFI

    Running a drill motor, or pulling a start cord, more slowly is counter intuitive to my thinking. Pull the cord more slowly and let us know what the result is please.
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    2005 DF115 low voltage CKP

    Voltage is a function of the speed of a magnet passing by a coil. Amongst other variables. Distance between a magnet and the coil being another. .3 inch gap for the sensor seems to be abnormal. What does your SM specify? 0.6 volts seems low. Is that peak voltage or RMS voltage? What does your...
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    Mercury Outboard vapor separator problem

    What is the theory on that?
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    Cotter pin for Prop...Any one will do??

    You might want to hone your search skills. This from a Yamaha dealer site.
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    Cotter pin for Prop...Any one will do??

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    Cotter pin for Prop...Any one will do??

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