Opus CDI unit variable timing advance for Dax 12V ZB CRF XR Skyteam Beati Singa and YX engine. The most efficient of the market ATTENTION, before ordering, please check the compatibility of this CDI with your machine (type AC-DC, year of manufacture, connections, type of intake : carburettor - injection, 2 or 4 strokes, cubic capacity) because in NO CASE will the CDI...