CTV400B
New Member
I have an interesting little problem with my speedo drive. This fault only happens when the I have driven over 10mls or so. Every time lift or put my foot down on the throttle the speedo either jumps up or slows down .I know its not the speedo or cable as i have a calibrated Halda driven of the cable and have taken it along our measured 6.22Km and it used to accurate to 5mtrs now 500mts. It therefore is an issue in the box. I have taken out the spur gear and inspected it apart from 2 teeth which are slightly marked the rest show no sign of wear. to my way of thinking i believe it may down to the output shaft thrusting forward and back causing the 2 gears to come out of mesh. Has anyone had the same experience if so how was it remedied