So...I think we almost have the 450 dialed in. I rode today and the engine braking seems to be a lot better. My husband messed with my fuel screw and got it to where it doesn't idle too high. The bike feels like it's doing a lot better, but I noticed the engine/hanging idle coming back when the bike got warm. It wasn't as bad as before, but it was still a little noticeable. Any ideas?