2002 Yamaha R6 problems

Before I take my bike to the dealership to fix these problems, I'm wandering if anyone can give me some feedback on what could possibly be causing these problems.
I have a 2002 Yamaha R6 and I'm experiencing 2 main problems:

1. After the bike warms up, when I'm at a light and I stick it in neutral and it's just
idleing, my RPM's shoot up to 3000-3500rpm.

2. When I get on the throttle hard, the bike begins to bog like it's not getting enough fuel.

Any feedback would be greatly appreciated.[:]?[/:]

Is your enrichener stuck open?

Yeah, sounds like the choke is still on to me.

Just wanna give a big thanx to nextmick and moto for responding. I'm from Detroit, and even though today was a somewhat chilly 42 degrees for ridin, I rode anyway. What can I say, I'm a diehard ryder. Anyway even though I've been ridin for 12 years now, I'm not the most knowledgable when it comes to fixin stuff on my bike, so I took the bike to my Dads and checked out the suggested choke problem (thanx again guys) and sure as sh*t, the choke was not disengaging properly even when the choke was set completly off. It still bogs a little at higher RPM's but that did'nt stop me from hittin 127mph down M-53. Again thanx for the responses.