How do i change from kilometres to miles on a yamaha xt125r

The speedo is only set in mph but yamaha use the same speedo on the xtx and the speedo is run off the brake discs they are differant sizes so you must be set to the xtx.
what you need to do disconect the battery (under the seat)leave for a bit and you should have ENDURO and NTARD flashing on the speedo (ENDURO IS FOR THE XTR AND THE NTARD IS FOR THE XTX) JUST TURN THE KEY WHEN IT SAYS ENDURO IT SHOULD RESET.