I just got my bike back from the dealer. I got them to clean the carb and something with the foot break. I rode it around in 3rd gear and when I let off the gas it backfired or a very loud pop. The bike seams to get hot really quick. I toke the sparkplug out and the tip of it is black and the first threads to. I rode the next day and it dident backfire. So am I running lean or rich?

Where is the air/fuel mixture screw at. Is it covered with a silver cap on the left side of the bike. How much do I have to turn the screw and witch way.

 

i would take it back to the dealer you had fix it and tell them to fix it right

 

Sounds rich to me, but I'd have the dealer do it so it's done right and covered by any warranty.

 

Back to the dealer.