Reply to "Coil Failure"

dlearl476

@Panhandle Bob posted:
Define low resistance reading on a multimeter, please.

Depends on what you have. Iirc, resistance of “Bosch Blue” coil is 3-4K on the primary side and 11-13 on the secondary.
My F.A.S.T Ignition specified high or low resistance coils. The Pertronix’ site lists 3: 0.32, 1.5, and 3.0.
It all depends on what your ignition system is made for.

btw: if you’re not familiar, you measure the primary resistance across the two leads +/- or 30/15) and secondary across the + terminal and hot lead.

FWIW: when I chased my tail wrt “carb issues” a couple of years ago, my coil tested fine with a digital multimeter but when I finally broke out my Simpson 260 the secondary was reading 17K ohms. Replaced it and my “carb issues” went away.

10/15/224:11 PM

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