New XS owner and new to the forum. Apologize if this has been addressed elsewhere, but what is supposed to hold the fuel barb elbow into the petcock? When I picked up the bike, one elbow was out already. Messing around with the other one resulted in it coming out as well. There is a little groove that almost looks like there should be an o-ring to seat them but there doesn't seem to be the clearance for one. Is there some kind of glue or something (loctite, JB weld, etc.) that should be used to hold these in place?