Quote:
Originally Posted by WildBill  BTW I think turning the mixture screw out (ccw) richens it. |
OK and the problem that causes the backfire is that it is WAY lean. So if you must adjust it OFF the ideal idle mixture, you should adjust in the direction of RICH, not lean (which is back toward where you started).
I would certainly give that a try before taking the carb apart again.
Stock pipes and air-box ??