OK JIM TRIED ALL THAT AND NO LUCK...WHAT GETS ME IS THIS JEEP RAN PERFECT, BEFORE THE PISTON CAME APART..I PUT A NEW ENGINE IN NOT A RE-MAN...HAD THE HEAD WORKED....AND IT HAS NOT RAN THE SAME SENCE....AND FOR IT TO RUN PERFECT WHEN U GIVE IT THE GAS..NO SKIPS TRAVELING....JUST CANT IDEL FOR NOTHING.....STARTING TO WONDER IF I NEED TO PULL THE HEAD OFF AND HAVE IT RE-CHECKED