You leave a cigarette burning under there?
Honestly, best to have the dealer check it out (which I think you're already doing). No clue without pictures/more info, etc.
They do not. By design. I had to buy all of it sight unseen, but I was hoping they'd contrast enough. I think they do in person, but I could always swap out the downstar bucket for a different color.
Removing the second nozzle. I was running 2 500cc nozzles 30/70 water/meth, now I'm running 1...