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Posted on Aug 01, 2009
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Mariner 25 hp 2 stroke hard to start then quits and won't restart

I replaced the spark plugs, check for water in the gas and cleaned the fuel filter. The fuel is flowing to the carb.
It will be hard to start, when it does start it runs for a few minutes at almost full throttle. When I try to idle down it dies. Then will not restart.
Help!

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  • Anonymous Mar 13, 2014

    Has new plugs and wires

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  • Posted on Aug 02, 2009
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It sounds like the float is sticking in the carb. Since the carb is higher than the fuel tank it pulls the fuel in by vaccum of the engine. when running at high rpms, it can burn the fuel thats flowing into the carb, when you idle down, the bowl of the carb is filling up with fuel faster than the engine can burn it and causing it to flood. Then when it shuts off at idle it does not want to start back up because it is flooded. To make a long stary short, pull the carb and give it a good cleaning and your problems should be solved.

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  • Posted on Nov 11, 2011
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Put a carb kit in you will get the fuel pump gasket also dont soak carb use carb cleaner in a airasoil can, then blow out set float make sure your gas hose is good and pumps up set air adjust out 1 and 1/2 turns don,t screw down tight b/4 making adjustment

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