Hi, all. After almost two months, the weather in MN warmed up enough to try to go flying today. It's been hooked up to a battery minder and I went out this morning to plug in the oil pan heater. I came back two hours later, climbed in and primed, gave it some gas and cranked. It caught for about a second, RPMs jumped up, then killed. This process was repeated multiple times with similar results. I'm in an unheated hangar, and temps the last few days were below 0F. If it turned over, then killed, what should I try next time? Pre-heat for longer? Entire engine block heat? Wait for warmer weather? More priming didn't help and I didn't want to over-prime. The battery is charged. I think I was just beaten by the cold. Thanks for your thoughts.