I do understand propane or the basics anyhow and have had a 930 Case LP for several years. Anyhow I tried to start a Moline G705 yesterday for the first time. I had to replace the vapor valve and the 80% valve as well as the liquid filler valve. I put about 5% in the tank and the tractor was not wanting to start and of course with the vapor valve on only. It tried but mostly smoke. It was around 60 degrees. I opened the 80% valve and liquid come out. I got to thinking maybe I was only getting cold liquid to the carb? This might be a stupid question but could the cooler temps be my problem?