Tip - How to Clean Out a Plastic Gas Tank on a Motorcycle | eHow

Plastic gas tanks are most commonly found on dirt bikes. Over time, petroleum and oil-based residue can gunk up the inside walls of the tank, dirtying fuel and limiting flow to the carbs or fuel injection. Dirt bikes have either two- or four-stroke engines. Two strokes run on a mixture of gasoline and oil, while four strokes run solely on gasoline....