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Yamaha 85 AET 1982 model ran well. Switched off to catch the big one. Would not start again. Swings healthy but refuses to fire.I have checked the cut-out switch, no problem. Even removed the white cut-out wire on the left hand side of CDI. Still no luck. Checked for spark whilst swinging. No spark. 1)How can I test the CDI? 2)Also does anyone know how to build/repair my own CDI as our agents charge me R4300-00 (about $650-00 US)for a new one. 3)What does the unit with the heat sink above the CDI do? (The one that has the fuse at the top).
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Born to suffer!!! -
There really is no test for the CDI itself nor can it be repaired, the service manual may give a set of resistance values for CDI but in my opinion they are unless.It can fail resistance test and still good. You can test pulsor coil,charge coil and ign coils. I dont any any specs on that model engine so I can't give the values. On the models here in US the voltage regulator is mounted above the CDI box.
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