I just synchd my carbs, can't remember the vacuum lines well enough. Think I have #2,3,4, right, but I have a short line detached I can't remember where it goes. anyone help?
Thanks mine aren't capped. What about one just ending under bike like a drain? Thanks again it's my daily driver and shes stuckThe middle vacuum port uses a short line to go to vacuum port on petcock.....if that is what you are looking at. Other two ports, first and third, are capped.
Thank you so much for the help. All the emission stuff color coded. I think I have it now thanks to the cog's and two manuals.On mine, port 1 and 4 were tied together with a T fitting, and the other end then went to the air value (this draws air into the exhaust from the air filter housing). Port 2 goes to the petcock and Port 3 was capped. This is not the California model, and that was how it was stock.
If you are saying that none are capped on yours, then port 3 goes to the "return pump" that is part of the CA emission routing that also has the charcoal canister. If you do have the CA emissions, then there should be some colored tape wrapped around the various hoses to help identify where they go.
You will have to give us a bit more description on what bike you have and then we can be a bit more helpful. Also, if any modifiactions where done, such as removing the air valve, removing CA emissions, adding cruise control etc.