I have a '05 BF 650. I've read (and expierienced) that it's hard to start in the cold. But my question is, should'nt it run good after it warms up. Mine seems to take forever and even then when you first take off the bike wants to bog and you have to feather the throttle to get it going. Then it seems fine. Does that sound normal?

 

Mine starts and runs fine in 23 F temp (this morning). Give a full choke to start and I don't even wait for warm up. I just turn OFF the choke and go. No hesitation, no bogging and no stalling. Runs fine in cold winter just as in a warm spring day as long as my thumb is on the throttle ... once in a while it would stall if I let it idle in a cold day for a long long time while I'm fixing my fence. But as long as I'm giving some amunt of gas, it runs just fine.