I just picked up an 05 YZ450. It has less than 10 hrs ride time and has never been raced and is bone stock. This is the second 4 stroke race bike I have owned, the other is an 01 YZ426. I am having trouble with the carb setup on the 450. If I whack the gas hard from idle of just off idle it falls completely on its face. It likes to stall in corners pretty easy. Im just not sure what direction to start. I have the clip in the middle position, 165 main and 55 pilot. I ride elevations 1000' or less. Is there something on AP I should be looking at? Are my jets way off? Also the temp is about 40* right now. Any help would be great.