mercury 50 hp losing power

I

imported_kevin

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Jul 3, 2006
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I have a 3 cyl 50 hp mercury outboard with powertrim. I dont no the year, but serial num is 9530059.
Past saterday i went out with my boat. engine running fine for abou 1.5 hours. suddenly the engine started losing power as if it was out of fuel. As soon as i put the engine in neutral it kept idling very nice. I then tried to get on my way again and the engine ran fine for about 10 to 15 minutes and then the problem returnd. I have checked my fuel lines and the bulb remains firm. the strange thing is that the engine idles fine and throatels fine..as anyone got any suggestoins for me
 
tashasdaddy

tashasdaddy

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Re: mercury 50 hp losing power

were you trimmed to high and not getting enough cooling water until you slowed down?
 
JoeW

JoeW

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Re: mercury 50 hp losing power

I'd check that fuel line again. I've had similar problems with my 100 hp merc. I checked the fuel line more than 3 times, and I swore it looked fine. Yet when I brought it into the mechanic, sure enough there was a small split where the line ran up against the hull. Ran fine after a new line was installed.
 
I

imported_kevin

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Jul 3, 2006
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Re: mercury 50 hp losing power

tashasdaddy said:
were you trimmed to high and not getting enough cooling water until you slowed down?
Click to expand...

No. the engine was trimmed down and cooling fine.
I have recently put a new fuel/water filter/seperator and new fuel lines.
I think i will just have to strip the carbs and try cleaning them. If anyone els has any suggestions i would love to here it.

But thanks to teh rest of you for your answers and sugestions
 
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