I have a Mercury 9.9 HP 4 stroke motor with remote start. M/N 1F10312DK its a 2004 model, The motor will not start in the normal position ,I have to push the button in on the throttle and move lever to full throttle position then motor will start and run at high idle. When I move lever to lower throttle the motor dies out at 2000 RPM. I checked gas tank half full.I replaced fuel line with the sqeez bulb on it and changed fuel filter,still have same problem.