DOES ANYONE HAVE A CLUE?HAVE PROBLEM GETTING UP ON STEP,WOULD HESITATE BEING FLOORED THEN TAKE OFF LIKE A ROCKET AFTER A MINUTE OR SO ,TACH ACTING FUNNY RUNNING THEN DROPPING OFF RPM THEN PICKING BACK UP, DID RESEARCH AND FOUND I HAD A FRIED REGULATOR CHANGED BOTH ,1 ST. TIME OUT RAN GOOD MISSED...