I'm fairly new here and just learned how to post! Right in front of my eyes as usual. I was given this wonderful old bike last fall and only had to break the engine free and clean it up some and it started like magic. Now it's got a new battery and all the electrical problems (from the horrible looking fairing and sissy bar with skull whose eyes lit red when brakes were applied) worked out and I'm running it every day. It seems to have gotten better the more I run it although I know this can only go so far. It was well cared for before it was let to sit. It has decent rubber with a Dunlop D404 in back and a Kenda Challenger on the front. I know nothing about Kendas but understand the Dunlops to have a good reputation. It has a Kerker 4 into 1 header that sounds and looks pretty good. The bike had just under 21,000 miles on it when it came to me and just did turn over that mark. I hope to put many more trouble free miles on it. My question now is about a vacuum vent on carb no.2 that is open. I found this when spraying carb cleaner and it revved so I eventually found it to be sucking air here. There is another vent port on carb no.2 and also one on carb no.4 but there is no apparent vacuum on either of these. There are no hoses to any of these. Does anyone know what the one that does suck air on carb no.2 goes to? I have some vacuum line that size and could fix it if it's a problem real quick. The bike seems to run fine anyway so I'm going ahead and using it fearlessly. I'll try to keep my eyes open for a response and thank you in advance for your attempts to help me with my new fun toy! I really dig this bike!! It's got scat!!