Will not prime

[<Roamer>]

I have a 1998 Yamaha 40 hp. When I squeeze the primer blub it will not get hard. I replaced it with a whole new hose and bulb and after running once problem returned. I have the tank vent open.
I think the problem might be caused by me disconnecting the line from the tank and letting the engine run the fuel out.

[<Hamfisted>]

Most of the time that's the sign of a failed fuel pump on the bigger motors. A hole in the fuel pump diaphram will prevent the primer bulb from getting firm. The fuel isn't bubbling out of the carb bowls when you're priming it is it?


Mike....... Miami, FL

[<Roamer>]

I fixed the problem. There was an air lock in the
hose. I disconnected the hose from the engine and
put it in the tank and depressed the check ball
in the fitting with a coat hanger. I squeezed the bulb till all the air was out and it starts and
runs fine now.