Hi everyone, I just purchased a 2000 model xr400 but the speedo doesn't work for some reason, I have taken the front wheel off and found that the device with the two cogs in it which turns the cable connected to the speedo, was seized full of greese and dirt. Using wd40 and carbie cleaner i was able to get all that to work although the speedo still wont work. i have confirmed that the cable is spining when the wheel is turned where it screws into the speedo. Im not sure what else i could try to get it to work? The speedo only has 1460km on it. Do these speedos require voltage to work or are they entirely mechanical? Thanks in advance.