I'm wondering what this nipple is used for? There is also one 180 degrees opposite of the main carb barb. Does anyone know what that is for? What should I do with both of these "extra" barbs? This is a 3W78 twin BTW. I bought it used and it did not come with a manual. Thanks and here is a picture of the barb on the side, the other picture did not come out well enough to post.
Tim