I HAVE A 80 SOMETHING MODEL MERCURY 25 2CYL WITH TILLER HANDLE.THE PROBLEM I HAVE IS SPUTTER WHEN GIVEN FULL THROTTLE.THIS MOTOR RUNS FINE OUT OF WATER.WHEN IN WATER IT RUNS GOOD AT IDLE AND MID RANGE BUT WHEN GIVEN FULL THROTTLE IT SPUTTERS REAL BAD.IF I BACK OFF THE THROTTLE IT CLEARS UP THE MOTOR HAS PULL ROPE START THAT FIRES RIGHT UP ON SECOND PULL OR SO.IS THERE ADJUSTMENT TO MAKE ON MOTOR OR OTHER PROBLEMS I NEED TO FIX ?
