[oldford2]

All good ideas posted above. However, If your carb bowl/power valve leaks to empty after 2 or 3 weeks, never pour gas down the carb. Dangerous. Get a small plastic bottle with a needle spout on it (I use one that comes with my wife's hair color kit) and fill it with a few ounces of gas and inject it into the open pipe in the carb throat to fill the bowl. Then put your air cleaner on and start the engine. Safe this way.
John