WHILE FOUR WHEELING THIS WEEK END I NOTICED A GAS SMELL A FEW TIMES. AT ONE POINT WHILE DRIVING I NOTICED ALOT OF SMOKE COMING FROM EXHAUST, I THOUGHT THE CARB FLOAT WAS STUCK SO I DROVE IT HARD FOR A WHILE AND IT SEEMED TO CLEAR IT UP. ALSO WHILE FOUR WHEELING THE ENGINE CUT OUT A COUPLE OF TIMES AND WAS A LITTLE DIFFICULT TO START, LIKE IT WAS FLOODED. I READ THE MANUAL ABOUT ADJUSTING FLOAT. IS  IT SOMETHING A NOVICE COULD DO OR DO I PAY A CARB SHOP.    ALSO ON LONG UP HILL JEEPTRAILS ON A HOT DAY THE WATER TEMP WOULD GO WAY UP BUT NOT ALL THE WAY. IT WOULD GO BACK TO NORMAL ON THE DOWNHILL AND FLATS. NO PROBLEM ON HIGHWAY. I OPENED THE HOOD WHEN HOT AND THERE DID NOT SEEM TO BE ALOT OF AIR BEING PUSHED BY THE FAN. BUT SOME. IM THINKING A BAD FAN CLUTCH. ANY THOUGHTS ?  MARK