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    Mariner 30HP Jet (40EOJET30) bottom cylinder full of oil

    So I have owned this boat for a few years now, it has a 30HP Mariner Jet on it (1999 I believe) I have always noticed a small oil leak in the cowling when sitting. Recently it has gotten worse. Went to start it this weekend and it would not turn over. Pulled the plugs and the bottom cylinder was...
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    Mariner 30hp jet stalls at half throttle

    I have had some problems with my 30hp mariner jet (1999) recently. It starts up and idles great. It throttles up to about half throttle then begins to cough and stall. I recently replaced the water pump. I took it out today (problem started) and it wasn't pumping water great and the stalling...
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