Big Bike Parts® has an alternative to replacing the entire fuel petcock assembly when your GL1500 Goldwing decides to start leaking fuel. It is a lot less expensive to change the rubber diaphragms that have most likely given way due to age. Our new Fuel Petcock Service Kit allows you to replace the sealing diaphragm, the actuator diaphragm, compression spring, screws and washers with all new components. For 1988- 2000 GL1500 Goldwing.