Engine died down at high RPM.

[mushman]

It's a 1986 steplift, the tank is in between pedestal and back to back seats in the front of the boat right before you step into the cuddy.
I was using a clear hose to get the old gas out and I kept getting so many bubbles in there it would kill my syphon flow.
I had it attached to the fuel line before it went into the fuel filter under the cowling.
I didn't clamp it, but it was a real tight fit, and I didn't see bubbles comming in from around the seal.
How would I check the pickup tube for a split?.