I have had this motor for about 3 years now and it has given me almost constant problems. The latest issue is dropping power and stalling completely while running. The engine will suddenly and randomly lose power while running and then not start again for the rest of the day. All evidence I have found so far points to a fuel problem.
When this happens, the bulb will have zero pressure in it and will have to be pumped almost constantly for the engine to start and run again. If I manage to get on plane I can keep it going by sawing back and forth on the throttle each time it starts to die, it will "catch" and get power back again for a few minutes before happening again.
I encountered this same problem a year ago - I replaced the fuel line from the tank to the engine, replaced the bulb, in-line filter, as well as the 2 engine mounted fuel filters. I then ran it and checked for any blockages by blowing air through the fuel line back to the tank and found no issues. It seemed to have fixed the problem for a little while as this is the first time it has done it since last summer. However now I am at a loss and am considering filling it full of bullet holes before setting it on fire.
Any help is greatly appreciated