Hey, I recently have been trying to sell my ATV and a couple of days ago a guy near me offered to trade a kawasaki kxf 450 with two broken valves. He says the cylinder is fine but the piston has to be replaced, from what I have checked the head might be salvageable but if not, a new one can cost upwards of 500$ plus another 220 for the valves. Share your thoughts, I will probably go take a look at it this weekend.