Looper or not

[wellcraftv20step]

I took the boat out again yesterday and had the same old problem, she would run great for the first couple of minutes then start to miss and bog rite down to where I cant get the rpm;s above 2000. Yhen while going along at 2000 rpm,s and the throttle in the wide open position she would just take off like a bat out of hell. It clearly seems like the longer I run it the worse the problem gets. Now it sounds like fuel but I took that tank out and flushed it my self 3x's just to be sure I was eliminating any bad fuel issues. And I took this boat out last week with no issues what so ever !! It ran really well, She has a new fuel pump ( VRO removed), New Timer base new Power packs; Carbs rebuilt, Wires. plugs. Seriously stumped here!!!

[phatdaddy]

what's the status of the primer bulb when this happens?

[wellcraftv20step]

I pumped the bulb with no results ,phat

[THEFERMANATOR]

Just because you have a new VRO pump, doesn't mean you have a working VRO pump. I chased this same problem before on an engine with a new pump, ended up being the pump was bad out of the box. Get a fuel pressure gauge on it and see if it is holding pressure when it does it. I know this VRO pump when it messed up would block the fuel flow so I couldn't even get fuel to it by pumping the primer bulb. I had to use a hammer to hit the pump to get it to pop open and allow fuel to flow so I could get back to the ramp.

[wellcraftv20step]

Ferm, what you said about just because its new made me think ! long story short. I think I have the answer .The fuel line had a split in it. Not even sure how this happened considering that its not old at all . Replaced it and seems to have solved the problem. Thanks,