for those of you having a problem with the speedo display too much off or some what off, here´s the fix, turn the key on, don´t start, look at your speedo in the first few second when you turn the key on, if the number display at 1500 then it is correct, if not just hold down the button on your right handle bar, you know the button to ajust the clock and other function like TOD ect... for few second, the first digit on the lcd will flashing, then just press once at a time to increase or descrease the number, if you want to skip to the next number then just hold down the same button again for few second the next number will flash and so on, but to get it acurate you must set it at 1500 or 1550, this is how i calibrate the speedo..