I have been going through this thing on and off for a while and still don't quite have it yet. I have done rebuild kits on both the carb and fuel pump. I have new spark plugs in it and just recently checked the point gap. The motor fires up every time but it has a hesitation and i almost would rather call it a "jerk" where the motor kind of kicks side to side. The points seem to look ok but i was considering changing them. Any help would be much appreciated!!