Smelling gas leak from your old, cracked gas cap? Does it get stuck closed, because the latches don't move well? Worried your key will break off in the cylinder? Here's a step-by-step of complete cleaning and rebuild of an old flip-up vented gas cap on a 1982 Yamaha Maxim. Includes popping chrome off to replace o-ring and cleaning the lock. Rebuild kit can be purchased by contacting xj4ever.com.