Quote Originally Posted by maxpower220 View Post
I have disconnected the fuel fead line at the base of the back of the engine (on the outback at least) and cycled the ignition switch to on. If everthing works, the pump will "prime" and fuel will shoot out of the hose. No, it's not "safe" or environmentally friendly, but it is free and no tools. That will let you know if you have flow up to the injectors. If no fuel comes out, you look further back toward the fuel tank.

A gauge will tell you the pressure, which is good info unless the pressure is zero.
Do our boats have a Schrader valve on the fuel rail? If so then you can just turn the ignition on and press the valve in and fuel should squirt out.