Question, I'm in the market for another atv. I found one that I'm interested in , Its a 2006 Polaris 800 EFI low miles 631 ran perfect when shut down, now get this "It was shut down FIVE years ago". It will start up with starting fluid but cuts off and will not run. What can or should I do ? Is it a simple solution of just clean the fuel system or could it be something more serious and costly. The price is$4250.00 but labor cost adds up not including part.