Help

[Joe]

I took my boat in to a reputable mechanic for a very thorough annual service. All filters, fuel pump, o2 sensor etc. I took it out for a spin in preparation for the Keaton weekend. It idles better than evEr. It is starving for fuel and the bubble is draining of fuel. After much time, I got it to the point that I could very slowly get it out of the hole, very slowly feed it the throttle, its ok. If I moderatly try to come out of the hole it never catches up to itself. Could it be possible that there is an airlock that I could get out? Any ideas?

The boat has idled rough for the last year but rAn great prior to service.

Thanks for reading all this...I am stressed.

[fishinfool]

Sounds like a possible tank vent problem. Or it could be a restriction in the line. But it definitely sounds like a fuel flow problem.
FF

[Joe]

Nothing was done to the tank. It ran good prior to the service. I wonder if a fuel filter put in backwards would reduce flow?

[Jumptrout51]

There should be a directional arrow on the filter for fuel flow.

[Joe]

If the problem was air in the line would it eventually work itself out?

[Tidedancer]

Check your hoses. This new fuel is eating up some of the old types of fuel hose.

[robbankston]

What kind of engine is it? Carburated or fuel injected? Old or new. 2 smoker or 4. etc etc

[What a mess]

new fuel ate my hoses, and I had to do a new hose and bulb did the fuel water seperator they left the hose to long it kinked lots to check.

[Joe]

The motor is a Yamaha 150 HPDI. They replaced two fuel pumps this week. I wonder if there is a primary and secondary pump and they are switched? Meaning, one is for high fuel needs and one is for low fuel needs.

[wevans]

Sounds like a dirt dobber made a home while it was at the shop!! Quit dickin around thinkin of the hard stuff and check the vent valve

[chugbug]

try loosining the gas cap and see if the problem goes away, if it does, you have a venting issue. If it doesn't you have a restriction in the line somewhere. A improperly installed fuel filter will do it if it is the inline type.