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Recent content by boscoe

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    2010 Mercury 30 HP EFI – Intermittent Fuel Pump Connection at VST

    Have you owned the motor since new? The connections in the wiring to the connector at the VST does not look stock.
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    Is my Chinese Fuel pump Bad????

    Problem is that it is difficult to tell the good Chinese stuff from the bad Chinese stuff.
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    2014 F150 lower unit

    What is the gland nut?
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    Saltwater series II 175

    Blown fuse would be my first guess.
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    1998 mercury 200 efi, my motor will trim up but not down

    What is the connection between Alnico 5 and the trim and tilt relays? That is what I was wondering.
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    2016 F130

    The exhaust cover is on the right side of the motor. Other side from the oil filter. Look under the intake runners.
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    Honda bf 225 garbage

    Before the failure did the motor happen to shut off at high speed for some reason?
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    2016 F130

    Nothing specific is provided by Yamaha since their service manuals are written for a trained mechanic. The anode in question (63P-11325-01-00) is located underneath what I will call the exhaust cover. You will have to figure out on your own how to gain access to that cover. A number of...
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    Spark plug gap incorrect from factory?

    While having higher voltages, capacitor discharge ignition systems don't necessarily have greater energy. Energy is a function of voltage and current. CDI systems have higher voltages but less current flow. The spark duration in a CDI ignition system is not a long as it is in a battery powered...
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    1998 mercury 200 efi, my motor will trim up but not down

    What is the permanent magnet?
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    2022 F90

    Have you physically separated the lead from the coil? Try it and see. You have nothing to lose. There are no spare replacement wires from Yamaha. It might be possible to buy a non Yamaha wire from an auto parts store that will work.
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    2022 F90

    Are you able to separate the leads from the coil assembly?
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    2015 F25ELPT Issue

    Was Mercury saying that battery power from the key switch is powering the high pressure electric pump? That is not making sense to moi. If a relay grounds the pump, in lieu of the ECU, how will the ground be terminated if the motor stops running?
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    Yamaha 25hp Four Stroke

    What is the complete model and year of the motor?
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    2015 F25ELPT Issue

    In a Yamaha configuration a relay provides battery power to the electric high pressure fuel pump. The ECU then switches the ground on and off to run or stop the fuel pump. I suspect the Mercury is one and the same.
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