Tacho an 690 Enduro von 21 auf 17 Zoll umstellen larsorange 2. Juni 2008 Cut the brown/grey wire att the connecter to the instrument (pin 18). Turn on key. set to trip 1 mode, press mode 10sek, pressmode for plus set for minus then redy, press mode+set for 3 sek. Done!! works great.