tach/speedometer problems EC300 suomi

[Swedoo]

Finally i find your forum!!

Recently bought a Gasgas EC300 six days suomi 2012.
It is like a dream to ride compares to my old Suzuki 250 four stroke.

But the speedo/tach wont work as it should. (Trail tech vector)

The speedometer doesent work and the ART are still at 00.45.00 and yesterday i was out for 2-3 hours but the ART didnt record it.

Anyone who has a similar problem ?

I have changed the 3v battery on the tach and tryed to reset all informations but still dont get the ART to count.
The speedo isnt that important but i really want the ART to working.

Hope someone can help me on this.

Thank you!