HAVE A NEW 2001 MERC 115, 4 PLUGS USING NKG. I THOUGHT IT WAS THE BREAK IN OIL BUT NOW THAT ITS GONE AND I HAVE CHANGE PLUGS I STILL HAVE NO TAKE OFF POWER. AFTER I DO GET ON PLANE AND GET IT WARM IT SEEMS TO RUN FINE. HAVE TO START OUT SLOW TO GET IT GOING, OR IT BOGGS DOWN AND WILL NOT COME OUT OF IT. ALSO SEEMS TO HAVE LOST SOME SPEED AT TOP END. ANY HELP THANKS
