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Went to the lake this weekend and couldn't get the throttle to open up, I squeezed the primer bulb and it was rock hard, even with the throttle wide open it was going nowhere? I had the carbs rebuilt last year and the lines replaced due to the ethanol, Any suggestion
Make sure the fuel line hasn't come loose where it plugs in the motor. If that is good take the fuel line (at the carbs) coming from the fuel pump loose and try pumping the bulb. Fuel should come out very easy.
Is it an external tank? If so, check your vent on the cap. I've seen the vent close, the bulb get hard, and the engine basically vapor lock.
Another trick is to unplug the fuel line at the motor, push in the stopper ball with a punch, small screwdriver, or whatever. Fuel "should" shoot out. It could be a stuck ball inside the connection.
It's an internal tank, I took the line off to the motor and put a small screw driver in and squeezed the primer bulb and gas came out freely. The day before going out I cranked the engine and it started and ran fine, when I squeezed the primer bulb it seemed like it run freely through the motor and didn't get hard?
Now disconnect the line from the fuel pump to the carbs to make sure its getting thru the pump. The primer bulb will not be hard while the motor is running. But not collapsed either. If fuel comes out when the bulb is pumped you have a blockage in the carb(s).
And that right there my friends is the very definition of trouble shooting. Great point Bill.
You're on the right track Roy. So far you have traced from the fuel tank, through the bulb and line, and to the end of your connection. Bill hit the nail on the head with the next step. If you get fuel through the fuel pump, you have a carb blockage. If you don't, you have a fuel pump blockage!
One last thought. Is there an inline filter anyplace? Either on the fuel line itself or inside the motor cowel? Some boats also have a fuel water separator?
I appreciate your help fella's