Originally Posted by Chicago-Spike
It would be a good place to start. Carbs that are run dry but the float bowls left full, develop gum/varnish rapidly. If you are going to continue that process I suggest adding a bit of "Seafoam" to the tank beforehand and let that run through the carb before shutting it down.
Try some Techron Fuel System Cleaner, if that doesn't clean it all out, then you gotta take the carb apart for proper cleaning
I don't know about the gumming being worse if it's run dry, but I've owned 4 bikes, and never once intentionally ran the gas out of any of them. One of them (when I lived in a colder climate) used to sit all for at least 3 or 4 months straight each winter, and I never had any problems whatsoever.
I never added any type of winterizing chemical to the gas during storage, either. All of my lawnmowers have always gone through the same procedure - just park for the winter, and crank back up next spring.
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