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Discussion in 'Technical and Troubleshooting Torque' at netrider.net.au started by Ljiljan, Mar 2, 2016.

  1. Hokay so...
    I've got a regular stumble in the second cylinder while at cruise. I've swapped plugs, leads, coil pack and injector and it's still missing all in cylinder 2. It revs somewhat cleanly - cleaner than it cruises - and idles perfectly. I'm told it runs wasted spark so if it were an ecu issue, would be missing in two cylinders instead of one. What an I missing?

  2. Check for leaks in the intake boot and the valve clearances as well as that the little cap is on the stub used for the vacuum column balancer. A slight air leak will make it run strangely.
  3. So will poor synchronisation of throttle bodies.