Engine died down at high RPM.

[mushman]

I have the clymers manual it has a voltage test I'm going to try first.
I did find some on ebay from 55.00 and up.While I'm at it I'll try the plugs to see if the switch is bad, and remove the fuel water separator and see what's in there, plus check the vent.
Does the air in the fuel line sound like it could be an issue?.Should I try changing the bulb out?.

[tsubaki]

What boat do you have?
Better yet where are the fuel tank(s) located?
Almost sounds like a split at the top of the pickup tube in the tank.

[tsubaki]

Air in the line could be a number of things.
Usually it will straighten out by pumping the bubble till it's hard.
If no fuel leaks or smells are evident and the air persists, you may have to check the pickup tube coming out of the tank for a split.

[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?.

[tsubaki]

If you're sure there aren't any loose connections between the tank and the point where you're getting the bubbles, remove the hose at the tank and try the same thing at the fitting at the tank.
Useing the clear hose helps a lot.
I'm sure this is going to involve removing a floor hatch and a lot of other crap.
Try everything else first, replacing filters, checking for loose connections (there should be a gas leak)
If you have to access the tank, might as well inspect the fitting and tube by removing it. Last resort.

[tsubaki]

The pickup tube rests down below the place where the fittings tighten into the tank and have a filter.

The fittings have a ball valve in them to reduce siphoning.

Try everything else first.

[steplift20]

i would check each wire see if your getting spark
the prblem is you can be getting spark but one side can be wee=ak
also check the vent
while your driving and the engine cuts down take the fuel cap off and see if it returns to normal if it doesnt its not the vent