Rev counter wire question

[thackers]

Well I've tried and tried on this but can't get anywhere so I'm asking you guys one more time sorry. My system is 12v standard electronic ignition , I have access to a rechargeable battery (which lights up the clock when attached to the red on the + side and black to the - side leaving the single green. Can anyone please give me a way to wire up this tacho? It's proper twisting my Swede Here is the little bug--r if it helps any. Big thanks for any help and again my apologies for raising this again
http://www.ebay.co.uk/itm/12V-Digital-R ... 4616a860cf

[eden]

looks like a load of shite to me but try connecting the green from the rev counter to the yellow or green from your stator by splicing into it. If that doesn't work chuck it in the bin.