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    Spark plugs

    How long has your life been? It was common practice years ago to use a timing light so as to turn a distributor so that the idle timing was correct. A vacuum source was connected to the distributor so that timing would change as the manifold pressure went up and down as the load and RPM of the...
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    Spark plugs

    Is the model of the motor unknown? Is it known if it is a Suzuki or a Yamaha brand?
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    Spark plugs

    You are a good man. What model motor?
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    Spark plugs

    I suspect he is presently munching on a slice of humble pie.
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    Spark plugs

    Typical Yamaha spark plug gapping information is seen below. Same gap. Different units of measure.
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    Spark plugs

    "Previous owner had plugs gapped at .34 mm and that seems more reasonable but I have no idea." "Lol...I know how to gap plugs." Which is it? Apparently no to the second verbiage.
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    Spark plugs

    What does syncing carburetors have to do with setting the gap of a spark plug?
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    Spark plugs

    Any idea as to the model of the motor or the spark plugs?
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    Strip gears off propshaft

    MMM. Motor Models Matter
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    trim tilt 3 wire?

    Some folks should not be allowed to work on their own motors.
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    Yamaha 150hp 2-stroke low fuel pressure

    The VST has a drain fitting. Open the drain. Pump the primer bulb. Fuel should flow from the drain. After ensuring the VST is full of fuel, you can apply battery positive and negative directly to the wires to the high pressure fuel pump. You should then have rated fuel pressure. If not, either...
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    200 hp Saltwaterseries lift motor engaging on its own.

    Many folks that replace parts without knowing for sure that the part in the problem have a surplus of unneeded spare parts. Yamaha will appreciate your business.
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    Power trim Wire, 2 or 3?

    Not ground wires but many models and brands use a bonding wire.
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    Power trim Wire, 2 or 3?

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    200 hp Saltwaterseries lift motor engaging on its own.

    You can simply disconnect the engine switch to see if the problem goes away.
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    200 hp Saltwaterseries lift motor engaging on its own.

    Need to know the complete model identity to be sure of getting to the right part number switch.
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    Power trim Wire, 2 or 3?

    I am guessing that it is the wiring for the trim sender.
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    Power trim Wire, 2 or 3?

    SM shows two wires to the trim and tilt pump motor. Blue for up and green for down. Mercury parts catalog only shows two wires to the pump motor.
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    Whats this part???

    An airline pilot will never ever use GPS speed when taking off or landing. He will use the old style pitot tube system. Fancified with electronics to make it more accurate. Speed through the air (like speed through water to some) is much more important.
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    Whats this part???

    They do. While failing to understand the difference between speed through the water and speed between two points in space. Across ground if you will.
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