I just picked up a 2013. So far, 50 miles. I have the same problem. It starts on first crank but it takes a terribly long to warm up, bogs with throttle during warm up, white-ish plug, popping on decel, you know, typical lean tune stuff. I knew one of the mods I'd want to do right off the bat is to rejet. I asked the dealer if they'd go ahead and do it before i took delivery, and they refused, saying that it 'might' void the warranty. (I know, BS). So I don't believe going to the dealer is an option. So, I'm planning on starting with adjusting the idle.
My question: I'm assuming the seat and tank need to come off to rotate the carb. How about the throttle cable? Can it be left in place when rotating the carb, or does it need to come off the pulley?
PS: The clutch spring wasn't hooked on properly either. Thanks TW200 forum members for the head's up on that too.