Thread: Cdi tester
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T77911S T77911S is offline
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Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,335
it does sound like a good idea, cheap is the key. points guys dont need one.

its not really a square wave out of the dist.
the signal has a long slow ramp up then a very fast or sharp transition from + to - with a long slow ramp back to ground. here is something else that many dont know. the MSD needs the sharp transition to be from - to +. the bosch needs + to -
the sginal out of the dsit may depend on the rotation of the dist. (CW or CCW). i know on my 930 with CCW rotation the sginal i s upside down so i had to flip the wires to get the correct signal into the MSD.
one other thing about the MSD, it has an LED on it that shows the signal from the dist.

i would think a tester to check tha output o fthe dist would be easier and cheaper to make.
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Old 06-05-2014, 04:18 AM
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