Unstrap the tank and unscrew screws or bolts that secure it. [substeps] For lawnmowers and similar items, you'll need to remove the fuel line and spark plugs.
[header] How to clean a gas tank [title] Disconnect the tank. [step] Before doing anything, you need to disconnect the tank from the motorcycle or other machinery. Without disconnecting it, you won't be able to access it or safely clean it.