I have a TT Pro 46 and a OS 46fx. Both of them usually start within 2 or 3 flips when they are cold. Last night I went up to the field. I bet I flipped both of them 100 times and couldn't get either to start. I got to thinking that the only thing different from any other time was that it was pretty cool outside. It was around 50 degrees. Hoping that the temp was the problem. I got my bic lighter out and held the flame on the carb for about 20 seconds. Then flipped the engine and it started right up. I couldn't believe that 50 degrees was enough to give me engine troubles. Anyone else have this problem. Any other suggestions on how to get them started in the cold?