Originally Posted by Bikeguy Joe
A cold seizure can happen at any temp. It happens when you run up a two stroke too soon after starting and the piston skirt has begun to expand faster then the rest of the engine .
Jetting richer (or at least move the C clip down a notch or so) is the way to go for cold riding.
they also get tight from sitting in the cold.. ever try to start a weedeater in the winter? there usually locked solid