OK I have a challenge for you tech folks. I am out of answers. I have a 2004 1/2 sportsman 400. Once it gets warmed up it kills and will not start again. It can be idling or going down the road. Actually if I choke it it will start and run for a little while but will kill again. I need to let it sit overnight before it starts again. I have cleaned the carb. Replaced the coil, Surefre box and CDI. Not the answer. Not sure if this is related but about a year ago I started to have battery drain. I was told my winch was drawing power. Not sure if that was accurate or not but I just put a deadman on the battery. Any help or suggestions would be appreciated!