I have a fuel problem
 

I continue to have a fuel delivery issue

1st I have replaced all the fuel lines, new 10 micron fuel filter, with fuel filter engine side also.

The engine starts fine and in idle runs fine.

When I power up after about 20 secs I loose power and it sounds like the engine does not get enough gas to run at full throttle.

Spend last night trying to trace out what it could be.
I have fresh fuel,the gas lines are not kinked and all are new and I replaced to another new filter yesterday so I want to say that the problem is not there.

My thoughts are that there is something inside the tank that is clogging the pickup

or could it be something engine side

Short of pulling the tank coffin cover to get to the tank which involves removing the center console I need some ideas??????????

If it is a Carb engine the jets may be plugged ?? Happens on my 130 Yammi. Had to replace old hoses because of Ethanol

Jorge, Happy Memorial Day weekend!
You have likely already done this but I would start by connecting a portable fuel tank to your fuel water separator and seeing if that works as normal. Assuming the valves on the fuel/water separator are open, that would eliminate the fuel pump and anything else from the fuel/water separator to the motor.

That leaves:
1). Valve at fuel/water separator is closed (hey, its easy to do, but fortunately as easy to fix)
2). A clog in your fuel pick-up tube or elbow (I've experienced this)
you maybe able to disconnect hose and blow into it. If it bubbles the fuel like a water pipe, the flow is good. However something may be getting sucked into the tube.
3). A broken or separated fuel pick-up tube (Gonna have to go in)...
4). A clog in in your vent (should be able to hear or feel air as you fill tank)
5). You are simply out of gas:o (I've experienced this thinking I had plenty of fuel)

Good luck. Keep us posted.

I think your engine has a diaphragm style fuel pump on it. maybe ethanol ate it up.

I do have a fuel/water separator but it does not have a valve
Clog in the pick up . I blew into the hose and was able to blow back air into tank
broken or separated fuel pick-up tube Could be but the tank is full so I think it may not be that
Clog in the vent ...need to check but I want to say its ok
Out of gas ...its not a 4 stroke but I don't think it used 50 gals yet

Damm I hate this...........

So if it is bad would it run at fast idle but dog it when at full throttle?
It does get up to speed but then after a short time run down to idle but does not turn off

Run it off a 5 gal gas can, that takes the whole (boat side) fuel system out of the equation. If you still have an issue with WOT then its on the motor.
How long has it been since the motor ran? If its more than a few weeks/months with untreated ethanol fuel then its time to tear down carbs/fuel pump. To give you an idea how quick it happens my lawn mowers used to have an issue sitting more than a few weeks (worse over winter) if I didnt treat the fuel!

+1 on the carbs !!! check the bowls !!

How? or is it a wait till I get home thing?

you have to take the carbs off the engine to do this.