I took some time off from work for Christmas, so naturallly when I get back I am buried in work. I was kinda stressing so I decided to go for a ride and clear my head, the temp is around 30. I warmed the bike up and headed off, as I was going through town around 20 mph everything was fine. When I got to the highway and I twisted the throttle it gave about a 1/4 inch and stopped, I couldn't throttle up past 35-40 mph. I've owned other bikes and ridden in the cold, even colder than this, but I have never experienced this. Is it possible for the throttle to freeze part of the way? If so, is there some way to prevent it?