My speedo has quit on me a few times. I thought it came unscrewed from the meter or broke, but the cable is fine. My problem lies in the front wheel. As far as I can see, as the wheel turns, it spins against a metal washer that has tabs on it (#5), and the metal washer spins a gear (# 10), and that gear spins another gear (#13) that spins the speedometer cable. It seems like this tabbed washer is the culprit. It is held on to the gear by a snap ring (between #'s 6 and 5). The washer (#5) has notches on it that locate it on the gear (#10) and these notches are what spins the gear (#10). Does this washer (#5) go bad? It looks like it has some wear on it. I took it all apart and put it back together and it works now, but this is the second time this has happened. I can take pictures if that would help.