I have been wracking my brain but there must be dust up there because I am still confused. So when starting, I have to play with choke lever on/off till it is warmed up. When I give it throttle, it pops and backfires out the carb. If I touch the throttle and slowly climb the rpm’s everything is fine. My experience is telling me the carb needs cleaning. Could the primary need to be raised?

Also, I am changing out sprockets and chain. I have read that the front stock sprocket is a 14t. The sprocket on my bike is a 13t. It is a stock sprocket. I also called the original owner and asked if he replaced or upgraded the sprockets and he never touched them (which I could tell from the lack of cleaning on this bike.) So did Honda ever randomly put 13t front sprockets on?