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I just had the same issue with my 70tlrs. The 3 wires coming out of the cdi were different lengths. The longest went to cylinder 1 and the shortest went to cylinder 3. Hope this helps you
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Thanks for the input guys. I will definitely check the wire lengths but hopefully I can confirm #1 cylinder by identifying a pulse with a multimeter (or spark with a plug lamp). Based on the service manual this should fire at 7 degrees ATDC "at full reversed" or as I would say fully retarded. If the service manual is correct then #2 cylinder will be the easiest to identify and #3 will be even easier
. If I get spark from #2 then its back to the drawing board.
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still a timing light will show when each is firing when moved to the individual plug wiresComment
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Thanks for your help fellas. The wire lengths were different as Blk88notch suggested and I was able to verify the firing using the other techniques suggested. Problem solved.Comment
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