Dip tank chemical work well for carbs. Word of warning, read the MSDS on what you have. These chemicals are not the nicest of chemicals. After being in the tank for awhile, we use pliers to remove from the dip tank. Then either wash off in our parts cleaning tank or with carb cleaner. The MSDS states that gloves and eye protection be used! Also make sure you have removed any rubber items or float seats from the carb, as the dip will ruin them. I know that there use to be a basket available for the Berryman's 1 gallon dip can, if not hang with a wire.