I'm stuck to having to leave my machine outside. It's been cold -15 to -18 plus windchill, and Carbs are freezing up. I use isopropanol in the tank but still freezeup. I'm not sure if I might have accessive water in the tank built up from previous owner. (new to me indy 500) last night I thawed the carb out for about an hour with the hair dryer, and ran fine for awhile. but froze up again. Any suggestions, other than building a heated garage? I syphoned some fuel from the bottom of the tank through a clear tube into a clear container and there were some ice crystals in it. How can I totally drain that out of my tank. where is the lowspot in the tank?