hhp cdi variable ignition

Hi,

Anyone using this cdi??? 

CDI Ignition Unit HHP v3,

http://www.sip-scootershop.com/en/products/cdi+ignition+unit+hhp+v3+_85006000
I have tryed it in a px and there is no spark. I have removed the insulation plate and I also dont get spark. In my primavera with electronic ignition it works fine. Any advise?
Alberto.

I tried it also with the same result!!![:#]