2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 318Get this manual
TRANSMISSION 11Remove all the transmission cover boltsUsing suitable pry bars, remove the cover using the designated pry points (indicated by the black arrows in the illustration below)Tap cover with soft face hammer to remove13Remove the cam chain tensioner spring (O)Slide the cam chain tensioner shoe (P), pins (Q) and cam chain tensioner cam (N) from the assembly
CAUTION