backfiring, too lean?

[SSpeeDEMONSS]

i went riding today and when i got back i rode it up the street. it seems to be backfiring more than it should. from what i can remember it was backfiring a little before but i notice it more now because im looking for it. it only does it when i downshift and am slowing down. does this mean that it is running too lean? i havent touched the carb or engine since i got it besides to adjust the idle a little. thanks for the help.

 

[Rich Rohrich]

Exhaust leaks that can draw cool air into the exhaust system can also cause backfires during decel. Check for loose connections and bad gasket connections in the exhaust. A leaking or poorly seated hot start button can have a simialr effect.