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4hp Yamaha Outboard (Oil coming out of spark plug)

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  • 4hp Yamaha Outboard (Oil coming out of spark plug)

    Hi All,

    My 4hp Yamaha failed me yesterday (F4AMH) when I went to try and start it the pull cord only came out a little bit. It was not in gear however when the boat is being towed I put the outboard in reverse gear so it doesn't bounce when travelling. I thought maybe it was stuck in gear because I forget sometimes to return it to neutral.
    I was messing about with it yesterday evening putting it in gear and turning the propeller and then today I took the spark plug off which was actually quite loose and oil oozed out a good bit too!
    Does anyone have any idea what my problem could be did I force oil into the head by turning the prop or is it something more serious.
    This engine is my backup and is not used a lot it had been stored upright for a couple of months prior.
    Any help would be really appreciated
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