To start the Champs and Cubs in the winter you first have to get yourself in the right frame of mind. Champs and Cubs do not like to start when it's cold. Not only that but they don't like to stay running even after they start. Once you accept that fact then we can learn how to start them and keep them running. I can tell you this.... once you do get them started it can be a really fun adventure and you'll even be able to brag about the performance... a little!
So, here's the procedure step by step:
Very seldom will this technique not work. If it doesn't work then either it's too cold to fly or the airplane needs some work.
Sometimes you can flood an engine but quite frankly it's highly unlikely in the winter time with these 65hp Continental engines. Remember the primer runs directly to the carb (not the cylinders) and fuel dripping on the ground after you operate with the primer does not necessarily mean that you're flooded! However, if you are convinced that it's flooded then simply open the throttle to the full open position and turn the prop BACKWARDS several times (probably 8-12 times) in order to clear out the cylinders. Once completed you can start over using the above procedure.
PREHEAT, PREHEAT, PREHEAT