Hey guys, I just picked up a used ninja 250 and am having some problems with it. I'm a noob to bikes, so maybe there's something fundamentally wrong with what I'm doing.
Anyway, the bike starts up just fine, I leave the choke on for a few minutes, and the revs hang at about 1k rpm at idle without choke.
But when I try to blip the throttle, the revs come down reaally slowly. Like 10 seconds to get from 5k back to 1k, and sometimes it'll just stick in between for a while.
The throttle cable is returning fine with the handle. The oil level is like at the max level, which is probably too high, and there's a bit of white smoke coming out of one exhaust pipe. Don't know if any of these are related, or what else to check. Any suggestions would be appreciated.