2007 Mercury 115 4 Stroke Fuel Problem

[mikenky23]

Put the pontoon in the water beginning of April and had the boat out probably 20 times prior to this past weekend. It's run great until now. To make a long story short I had problems with my fuel line and build up from ethonal gas. Replaced fuel line and made it back to the dock. Monday I replaced the 2 fuel filters on the motor. Starts and idled fine, when I went to WOT shortly thereafter the RPMs would drop to around 3000 and after backing the throttle off was able to go back to WOT. It will keep doing this. Is there anyway to figure out which fuel pump might be going bad? Either the high pressure fuel pump or the fuel lift pump while the boat is on the water? I haven't cleaned the VST yet will do that next. I've read a few post on that that possibly being the problem. Also read a few on possibly the fuel injectors being dirty. Anyone have any suggestions? Help...

Thanks,
Mike

 

[PontoonboatFun]

Re: 2007 Mercury 115 4 Stroke Fuel Problem

check your fuel module for hose to the regulator > burst hose to the regulator, Also bad fuel line from the tank.

 

[sailsup]

Did you find out what the problem was? Im having the same trouble. It bogs down 2-3 times just when I first get on the water and then it runs fine the rest of the day.

Thanks!

 

[GA_Boater]

Did you find out what the problem was? Im having the same trouble. It bogs down 2-3 times just when I first get on the water and then it runs fine the rest of the day.

Thanks!

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