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noise from Suzuki 25 DF V-Twin (Johnson 2005)

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  • noise from Suzuki 25 DF V-Twin (Johnson 2005)

    Hi There
    I'm Rodrikes from Holland. Earlier this year I acquired a Johnson/Suzuki 25HP V-twin. (=Suzuki with Johnson stickers). I use it on a 13ft Boston Whaler.
    The thing is It starts right away every time, but whenever I open the throttle there's a hard noisy sound coming from the engine. I made a video to give you a idea of the noise. I'm not familiar with this type of engines (i'm used to 2 strokes) but in my opininion this is not right.

    Video of noisy outboard

    Today I met a someone in a boat using the exact same 25 hp suzuki engine. He let me hear his engine and it was much quieter and with a better idling less vibration.

    Does anyone have an idea what this is?
    Thanks in advance!!

    Best regards
    rodrikes

  • #2
    Hi Rodrikes, It's hard to diagnose from a movie but it could be the valves that are knocking but also a leak in the exhaust system or bearings.

    How does the engine perform? How is the state of maintenance? Oil? Does the engine perform as it should be?
    Regards, Martin
    DF200 2007

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