MY 90 JOHNSON HAS TROUBLE I HAVE ALREADY REBUILT THE CARBS, AN STILL THE #2 CYL. IS NOT WORKING COMP. IS 145 I GOT FUEL AND FIRE AT LOW RPM AND HIGH RPM ALL OTHER CYL, BREAK DOWN WHEN PULLEN PLUG WIRE THE #2 DOES NOTHING #2 HAS FUEL,COMP,FIRE WHAT ELSE DOES IT NEED PLEASE HELP THANKS