Greetings to all. I am working on my brothers 1200 sportster 2001. It has been sitting for 2 years??? I have replaced the pet cock with an after market that dose not have the vacuum port and I plugged the vacuum line. The old pet cock was nasty. I did this on the advice from the Harley shop. I replaced the fuel line and the tank vent line. I still have an obstruction inside the tank I cant blow through the vent line. Take the cap off and you can see the vent line. I rebuilt the carb. It was NASTY. Soaked in cleaner for 24 hours. Float is good it dose not sink when you put it in some gas. New needle valve. Float is set at 19mm. Bike starts fine and runs good no hesitation in throttle. When I shut it down and wait about 3-5 min gas leaks out the overflow. If I shut the pet cock It stops. I do not have a manual. Sure am glad I found this site.