ok guys. does anyone remember because i dont. i kept the digital speedo from my first xr6 (1985 XR600RF) bought in 1986 if its important. anyways, its progressed through a few other xr6s and is now on its 2nd xr4. the casing has been cracked a few times and has been re-epoxied back togather and still works fine. trouble is, i have completly forgotten how to calibtrate the sucker and i remember it had other functions the details of which i have forgotten. the question is does anyone remember all the details on these or better still have instructions??? pic follows.