Yeah me too. I had to send the whole machine in this time. I sent it to another dealer. The mechanic at Big Lake Arctic Cat didn't tighten down the rocker studs on the rear cylinder and all four of them came out. That is what the tapping sound was that I complained about. Luckily the new dealer found all four studs and nuts in the top of the cylinder. Plus the timing was off on that cylinder. They kept it for a week and drove it every day before shipping it back to me.