Bike ran great last year. Bike started acting up this spring. Choke didn't raise RPMs, back firing on decel, idle different everytime I started it. Figured it was gummed up. Took to shop for a carb clean. Got it back, idle stable, backfire better but still there, choke still only raises a couple hundred RPM. I'd like to richen it up a little more for the backfire, but I have no idea about the choke.
Suggestions?