aftermarket/old factory rider coil?

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i bought some coil off a guy on ebay because i had lost mine

well when i got it, i ended up finding mine, but then i compared them.. the one from ebay has a plastic cap from NGK and the cable was long. my old one has a rubber cap from NGK and it had a very short cable

[C-LEIGH RACING]

Simple, use the one that works.
Neil

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cool, because i asked if it worked or not. i was wondering if anyone had one like it, or if it was just sold on one certain year because i hadn't seen one before.