I sell equipment and one of my dealers took in a 660 on trade. He knew I had been wanting a Utility vehicle. He called and said bring your trailer. I brought it home an took it out for an hour and about an hour every night for another 4 days. Long story short I bought everything for a total tune-up, when I got to the engine oil I unscrewed the drain plug and no oil. I have no idea how long it had been without oil. Engine seems fine, no ticks, knocks,smoke or anything. It does 38 mph so I don't think anything is wrong with the clutches. I'm baffled, this should have smoked the motor. What are your thoughts? I had planned on buying it, sold my wheeler, bought tires, winch, roof, gun rack, and a few other things. I'm in a tough spot with hunting season around the corner and no wheels. What would you do?