Cdi testing

Discussion in 'General Questions' started by Rich troup, Apr 29, 2016.

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  1. Rich troup

    Rich troup Guest

    When I test my cdi from black wire to plug wire I'm getting 5.77 on the 20k scale.. I understand it's to read under 2.5. So what is my reading telling me?

  2. crassius

    crassius Well-Known Member

    nothing much - using a meter to test CDIs is difficult because polarity of the leads will change reading across the capacitors in there - also, the timing is controlled by transistors that can't be read very well from outside

    on the other board, I show pics of the CDI tester I built and also a quick and dirty timing tool one can attach to any motor to check timing

    my win9x machine can't work this new s/w here well enough to post those pics on this board