Reply to "MSD 6AL ignition box versus Duraspark"

sigMember

Thanks for all your comments. I had with my Duraspark misfiring @WOT at high rev and there was room for improvement when idling. You might think that this is clearly related to issues with fuel feed/carburetor, but I found after a longer search that is was my Duraspark. With a replacement Duraspark all above mentioned issues disappeared. I'm not an electronic expert and have not understood what kind of failure case I had on my old Duraspark. I found that the previous owner had removed the external resistor in front of the ignition coil (no resistor wire installed in my car) which had caused quite some significant overheat of the coil. My guess is that the resulting over current had damaged an electronic component inside the Duraspark. Unfortunately, this had caused a degraded operating mode which was for me difficult to identify.

Thanks again for your advice

SIG

11/4/1912:18 AM

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