Quote:
Originally posted by ttstu
Anyone got any idea why the sensor fails? Is it an earthing problem or generally an issue with the sensor itself?
How different is it to say the 916 etc? |
The 916 series bikes have a completely differant speedo set up.The drive comes from a gearbox mounted on the front wheel spindle.It is mechanicaly connected to the speedo via a cable.
749/999 bikes have an electronic sensor to trigger the speedo.The sensor is mounted in the plate that holds the rear brake caliper.The sensor points at the bolts that hold the rear disc and basically triggers everytime one goes past.Hence why you can get a speedo reading when rolling backwards!
The sensor sometimes fails due to an excess of dirt/crud/corrosion on the bolts or sensor.They have also been known to fail where someone has fitted titanium bolts to the disc carrier.
Threaded Mode