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    Mercury 4HP 4 Stroke Air Leak

    I have one of the early - 1999 - 4 stroke 4 hp Mercury engines that had the seperate gas tank.<br /><br />Unfortunately it has developed a problem that I think is an air leak but I can't find it. At over half throttle the engine runs fine but as soon as I get below that the engine wants to run...
  2. C

    Power of 2 Stroke v 4 Stroke?

    I am new to this board so apologise if I am asking something that has been often asked before.<br /><br />I am looking at a new motor and am mystified to read that 2 stroke motors that are rated at the same power as 4 strokes actually give more power.<br /><br />Is this really true and if so...
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