Fuel Problems? ANY HELP

[Little Landon]

Has anyone ran across this problem before---Have a 89 tracker with 110 Johnson. Boat will run fine and plane out smooth but right after it planes it cuts off like it is not getting enough gas. Can back off throttle and let idle for a minute and it will plane out smooth again then cuts off. Been told that fuel line or primer may be collapsing. Any help will sure be appreciated. Thanks in advance

 

[Another retired guy]

Re: Fuel Problems? ANY HELP

Hi. Definately a fuel starvation problem. Check/replace fuel lines and filters. Also make sure vent on fuel tank is not plugged.

 

[Little Landon]

Re: Fuel Problems? ANY HELP

changed the fuel lines from inline filter to engine but not from tank to inline filter

 

[Barnacle_Bill]

Re: Fuel Problems? ANY HELP

See Mercury service advisor No. 2001-17
Or to make it simple rebuild the fuel pump but use Merc' s kit. It contains new style check valves. The old ones have rubber edges and over time ethanol causes the edges to curl up an not make a good seal. The result is the problem you are having. The kit is cheap an its a pretty easy job.

 

[25thmustang]

Re: Fuel Problems? ANY HELP

Had a similar issue when there was a small hole in my fuel fitting at the tank.

 

[sublauxation]

Re: Fuel Problems? ANY HELP

Another thing to check, I had a portable tank once where the fuel line in the tank was rotted out and it acted similar to what you're describing.

 

[Little Landon]

Re: Fuel Problems? ANY HELP

Thanks Guys--will check these things out when I get back to the cabin. Seems you get one thing working and something else will slip up and bite you. The joys of being a boat owner I guess. Thanks again

 

[EddiePetty]

Re: Fuel Problems? ANY HELP

Sure sounds like a fuel pickup problem. See if the problem goes away with a full fuel load.....if so, check that the fuel pickup tube hasn't perforated.

 

[mfsb]

Re: Fuel Problems? ANY HELP

I am dealing with the same issue on my boat. Mine is bad fuel, causing the Anti-syphon valve to jam up. I had replaced fuel lines, added a water fuel separator filter, and fresh fuel. The varnish in the tank is causing the issues. I am thinking of mixing B12 with several gallons of fuel as suggested by another Iboater. I figure mix the carb chemical with the fuel, put the boat on the trailer and drive it around the neighborhood a couple times over a weekend, then run the fuel with a filtered recirculation pump set up to try to clean all the impurities out. After that a couple more times around the block, let it slosh around and one more run with the recirculation concoction and then drain it all. Add a full tank of gas, TCW3 oil and run the boat all day with an extra filter for back up. Not sure what else to do.

 

[QC]

Re: Fuel Problems? ANY HELP

Need to eliminate the supply side. Seems like too many ideas and no plan Running her from a separate tank straight to the filter seems to be in order. But check out Post #4. My .02.

 

[Little Landon]

Re: Fuel Problems? ANY HELP

Need to eliminate the supply side. Seems like too many ideas and no plan Running her from a separate tank straight to the filter seems to be in order. But check out Post #4. My .02.

Are you suggesting take fuel line off existing tank and run it with a temporary tank?

 

[MAC ATTACK]

Re: Fuel Problems? ANY HELP

I have an 85 Johnson V4 on my bass boat and one time it did the same thing. Turned out to be clogged jets and a carb rebuild fixed it.

 

[QC]

Re: Fuel Problems? ANY HELP

Are you suggesting take fuel line off existing tank and run it with a temporary tank?

Yes, but don't use the fuel line either. Run fresh line to the temp tank from filter. If it is still happening, you will have eliminated the pick-up, connector, the fuel line, the primer and any anti-syphon valves from your list.

 

[Little Landon]

Re: Fuel Problems? ANY HELP

Yes, but don't use the fuel line either. Run fresh line to the temp tank from filter. If it is still happening, you will have eliminated the pick-up, connector, the fuel line, the primer and any anti-syphon valves from your list.

Thanks guys--been trying to find a start point without spending money that I don't need to

 

[Little Landon]

Re: Fuel Problems? update

Re: Fuel Problems? update

Thanks guys--been trying to find a start point without spending money that I don't need to

Update on fuel problems---Changed fuel line from tank to quick connect on engine and blew vent to tank out. Don't know which one was the problem but boat started running real good -no problems at all. Thanks for the help guys.

 

[Little Landon]

Fuel Problems update

Fuel Problems update

Changed the fuel line from the tank to the quick connect on engine and blew out the tank vent. Don't know which one was the problem but boat runs like the Law is after it.Thanks for the help and advice. Real relief to get this thing going right.

 

[crabby captain john]

Re: Fuel Problems? ANY HELP

Great to hear your problems are fixed. Not nice to have engine problems on the lake-- a lot worse on the Atlantic..