My quad has been running perfect, but we decided now would be a good time t odo my rebuild before winter racing starts up, we saw this purlish blue color and wondered if this is normal?? Would it be due to overheating maybe when I had my 426? I notice my 440 runs ALOT coller than the 426 did,but Im praying this isnt anything to worry about since its running fine?? am I going to need a new Crank? :confused: :( I need someone who can reply with great experience please