Straight pipe to barb fitting at tank. Your rubber line is clamped to it. Inside fitting is a small spring/ball. Make sure all the hose / tube fittings are tight while you are there.

Do the fuel lines have shut off valves ?

That was going to be my question. I forgot to turn mine back on a couple of weeks ago. Felt like an idiot at the ramp!

This exact issue happened to me last year, but with only one motor. The High pressure fuel pump to the cool fuel system wasn't working. You should have two pumps for each motor, one draws from the tank to the cool fuel, and the other from cool fuel up to the inline filter.

Odd that you have this issue with both motors, but i guess it could happen.

Got Cigs- Thanks, I'll try that. Do you have a picture of the pump that you think is bad? Is it the aluminum colored cylinder shaped one that is attached to the stringer?

The one attached to the stringer is the low psi pump, which draws from the tank. The high pressure pump is mounted under the motor towards the front... it was a b**ch room wise, mostly did it all by feel. I don't have much room, hopefully your boat has a little more than mine. Ill see if I have pics, pm me your email.

Curt

So, did you ever figure out the problem? I'm dealing with the same issue.

Idle air control sensors...

I had a similar issue and replaced the IAC sensors.....GM versions from your local auto parts stores were less expensive then mercury.