Hey guys, been a while since i've been on here. I was wondering if i can get some help with an 01 sportsman 500 RSE i just bought. When i bought it the guy said it was hard to start, so i bought a carb rebuild kit and changed it, made sure everything was ok, and put it back on the bike. It is still hard to start. So while messing with i pull the air box and stuff back off so that only the carb was still mounted and tried to start it. Nothing happened it just turned over so i pushed up the jet needle and it fired right up. So i killed it and tried it again. It started right up without moving the needle jet. So i pulled the needle out and adjusted the clip down a couple of grooves and it started fine the rest of the day. Now it is doing the same thing again. What do u think is the problem. Also, it is backfiring through the exhaust loud when i try and give it a little throttle while cranking. The choke doesn't seem to help at all. Thanks for the info in advance.