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55 hp Mariner 2stroke 3 cylinder. No botton end power.

I found this problem recently. When I punch the throttle the engine "stutters", almost like its getting to much fuel to quickly, for a few seconds before it starts going and when at speed it runs like hell. What could be the problem?

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Make sure all cyls working , running , and with airbox off while ticking over advance thottle slightly and make engine struggle place your fingers over each intake slightly to see which cylinder picks up , then thats the carb to clean the most ie , youve taken all carbs off so clean all ! P...

Posted on Dec 11, 2013

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Posted on Jan 02, 2017

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SOURCE: Yamaha outboard engine. Model f20leha manufactured

have you left the choke open ? this mixes more fuel to the engine upon starting but will stall it if left open too long . check your fuel filter too it may be full of debris.

Posted on May 02, 2012

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Is it 2 stroke or 4 stroke


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When accelerating the engine seems to stutter.


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