2hp outboard engine cutting out after rough sea then only starting later?

[jwardmagic]

I recently had my 2hp mariner 2 stroke outboard serviced and was told it was working perfectly. The next day I took it out for a short ocean cruise on my small boat and upon heading back against the current it cut out. Each time I hit the waves I heard the revs on the engine slow down (as the boat raised in the water) until finally the engine cut out. I was forced to row 1/3 of a mile to the nearest beach. During this time (an hour) I managed to make the engine start twice, but each time it stopped again after about 30 seconds. After managing to get to shore, we had to deflate the boat and carry the engine and boat up a 200 step cliff path to the nearest road to be picked up. The spark plug was replaced, impeller replaced and the fuel is fine...but it still stopped...

My question, regarding the waves and revs I mentioned, what may be wrong with the engine?

 

[flycaster]

Re: 2hp outboard engine cutting out after rough sea then only starting later?

sounds to me that your gas supply is low.
When you got raised by a wave the gas pickup tube went out of the gas supply.

 

[perchin]

Re: 2hp outboard engine cutting out after rough sea then only starting later?

sounds more like you need to loosen the twist style wing nut on top of the gas cap..... its starving of the proper pressure in the tank (oxygen). I seem to forget this once a year or so.:redface:

 

[jwardmagic]

Re: 2hp outboard engine cutting out after rough sea then only starting later?

sounds more like you need to loosen the twist style wing nut on top of the gas cap..... its starving of the proper pressure in the tank (oxygen). I seem to forget this once a year or so.:redface:

I have the air intake valve at the top open when I run it.

 

[jwardmagic]

Re: 2hp outboard engine cutting out after rough sea then only starting later?

sounds to me that your gas supply is low.
When you got raised by a wave the gas pickup tube went out of the gas supply.

The tank was full of gas.

 

[CharlieB]

Re: 2hp outboard engine cutting out after rough sea then only starting later?

Pull a sample of that fuel from the BOTTOM of the tank, it may have a small layer of water under the fuel which allowed it to run great, until the waves rocking the boat stirred it up and sucked it into the carb.

Drain the carb, catch that fuel and look at it.