HI<br /> THIS IS A NEW SHOT IN THE DARK, BUT I CAN ALWAYS USE GOOD ADVICE ON MOTORS. <br /> I HAVE GOOD SPARK ON CYLINDERS #1 & 2(TOP 2 CYLINDERS), BUT NO SPARK AT ALL ON #3. I SWAPPED OUT THE COILS TO SEE IF IT WAS THE PROBLEM AND STILL NO SPARK. (I GROUNDED THE PLUG TO THE FRAME FOR SPARK...