I started riding last year in February. While out skiing my bike (2013 KTM 300 XC-W) never froze. I had my bottom end rebuilt last year and I re-built the top end. Twice now while I was out skiing for several hours my kickstart was frozen solid and I could start it at first. The first time I stomped on it a few times and got it going. The second time I put the bike gear then unsuccessfully tried to move the track. I got back on and stopped on the kickstart and it finally went. The first time it was 5 degrees out. Today it was 15 degrees. It was crazy deep both days. I feel like the piston is seizing on the cylinder wall. My best guess is that I am not letting my bike run for a few minutes before shutting it down and possibly there is some moisture in the head from the blower snow. I am thinking about taking a portable torch with me so I can heat the cylinder. Has anyone else expereicned this?