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Smoke on Cold Start

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  • Smoke on Cold Start

    I have a 2009 F4A and recently it has taken more pulls to start up and produces smoke on a cold start. The engine seems to be fine once it's warm, but was wondering if this is something I should be worried about or if it indicates something needs fixing?

  • #2
    how do you store the motor when you shut it down?
    maybe you tilt it way up or take it off and lay it down, which could cause oil to seep by the rings and into the combustion chamber instead of running back into the oil sump

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    • #3
      It is kept on the boat at a mooring. The engine is tilted up as the marina water level varies based on when the lock close by is opened and closed. The engine does swing around whilst tiled. Will this cause any damage to the motor?

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      • #4
        Originally posted by wrecker_ View Post
        It is kept on the boat at a mooring. The engine is tilted up as the marina water level varies based on when the lock close by is opened and closed. The engine does swing around whilst tiled. Will this cause any damage to the motor?
        fouling the plugs is all I can think of and lowing oil level.

        if you leave the motor down while cooling off, and then tilt it up?
        does it still smoke at next start up?

        hold on, is the combustion chamber and spark plug at the rear of motor?
        if so tilting it up should drain the oil away from the combustion chamber, not into it.
        should have said tilting it too far down may get oil into the combustion chamber while cooling off
        Last edited by 99yam40; 10-07-2024, 06:46 PM.

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        • #5
          Thanks for getting back to me. I haven't tried that, but I do probably leave it down for a bit before it tilt it up.

          Yes the spark plug is at thr rear of the motor. I think the motor may have swung round whilst tilted up so the spark plug end was at the lower level hence the chamber filling up with oil

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