Howdy. I'm still learning so bare with me. What is this used for? and is it something that is needed on my 71 GS 350? I'm just running a stock setup for the most part. I'm in arizona. thanks.
Duane, I see the cap in the Manual now.................The cannister is for emissions purposes. You do not reaaly need it unless required by your state. If you want a correct look then you should have it.
