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bouncy tacho on gpx250??

Discussion in 'Technical and Troubleshooting Torque' at netrider.net.au started by emilmh, Oct 7, 2005.

  1. hey guys,
    got a bit of a problem with my tacho.

    the bike:
    1988 kawasaki gpxr-II ninja250 import

    the problem:
    When i rev the bike to around 4/5000rpm and up the tacho needle starts to 'float' or bounce about and thus doesnt give me an accurate reading. The bike still runs good so its not really an issue of the bike not working just that its annoying that it doesnt read properly.

    Is it a common problem? Is there a way to fix it? would it be just a loose connection? (i cant exaclty imagine a tacho beaking! as its not exactly a stressed mechanical component!)

  2. The mechanically driven ones wander a bit. I think they have weights in them to dampen them. You would need to take it to a instrument specialist to get it looked at.

    Look for guys that rebuild old trumpys etc.
  3. hmm i was hoping that i wouldnt have to take it to a workshop. its my first bike so i dont want to spend too much money on it.

    anyone else know if its something i could do myself?
  4. I had something like this happen on my bike a few months ago. Would get to about 4000rpm and then it would drop down, then back to revs and so on. Sometimes it worked fine, but other times not really at all. Ended up just being the connector loose. Took of front fairing and just pushed it together again.