Fresh, filtered, dewatered and clean gas at all times is the best way to prevent gumming, AG.<br /><br />Most gumming is a form of varnish that is a product of aged gasoline. . .in the tank or in the carb.
Your owners manual tells you to use a fuel stabilizer additive to prevent gumming of the carbs.<br /><br />Every motor company makes a fuel additive that you need. See a dealer.
