Apico rev counter.
 

Ok so my revs have stopped displaying in my DIAG and for the life of me I can't find the solution so I'm thinking of getting one of the hour meters that will display RPM eg: http://www.visionmx.co.uk/apico-engi...ith-bracket.ir

Looks easy enough but my engine is one of the twin spark versions, is there anything in particular I should look out for?