Changing the axle on the old 660 to get it ready to sell. Can’t remember what size the axle nut is. You know, the one that has like a million lbs of torque! Any help? Thanks!

Trying to get to diagnostic mode on my new 2014 grizzly 700. Tried holding the select and reset buttons and no luck. This used to work on my 2011 but seems to be different on the 2014s. Any help would be appreciated.