ATV Tech: Basic Carburetor Clean-up Spring has come and many off-roaders will be starting their ATVs up for a great summer of riding. Well, most will anyways. Others will sit in the garage with thoughts of riding only to be let down by a faulty fuel-delivery system.
Fact is that the stale fuel in the carburetor, along with the condensation that has dropped into the bottom of the fuel tank, will keep many grounded until serviced properly. Gasoline does indeed have a shelf life contrary to popular belief, and when it goes bad it leaves behind a residue or varnish on almost everything it is in contact with. This varnish coats small openings in the carburetor, and that?s when it becomes a problem.
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