Tim Hart

Hi guys - just wondering if anyone can help me with setting up the trigger and reference points for IGN on a Daihatsu Charade 3cyl engine? I realise this is a long shot but hoping there might be someone out there as silly as me to do this to a Daihatsu  The distributor has 2 trigger wheels driven at camshaft rpm, one with 3 teeth and the other with a large number (haven't yet counted) Am a little confused as to which one to use for the cyl 1 TDC ref and which to use for trigger.  Any help would be greatly appreciated  Cheers Tim