ok got a problem with engine keeping primed after shut down . if I cut the engine off and fish say 15 20 minutes the engine fires off but cuts off, I have to repeat the cycle 6 to 110 times while pressing the choke then it will finale run fine till next stop several time I squeeze the fuel ball to get it going. this has been going on several trips and I've replace the ball and checked the obvious things no fuel leaks ect. I don't run it hard under 4800 rpms it runs ok but if I open it up the alarm come on and it goes into the safe mode like if it running hot but not a over heat or temp sensor problem. If is using a lot more oil than usual and smoke a lot while idling, wondering if the fuel pump has a bad diaphragm. Any Ideas?