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spark plug boots/caps
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mdole
Originally posted by Swanny
Mike
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Billy Ricks
When you buy a set of Dyna or Accel coils the wires and boots that are sold for them are just standard automotive type. No resistor caps or wire.
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Anonymous
spark plug boots/caps
here's an update. i removed my plug boots today. two of them (which i believe are good ones), read about 10k ohms each. when those 2 boots were attached to the coil i was reading 33k across that coils secondary-that reading was right on spec, so that means the 10k ohms (each) on those 2 boots is good. now, the other two were way out of wack. one read either an open (OL on digital meter) or 5meg ohms as different times, the other about 1meg ohm. those boots were on the coil that was showing OL(overload or infinity) for a resistance reading when measured at the boots while connected to the coil. i installed NGK boots (xb05f & vb05f) which are 5k ohms each. this dropped my secondary readings from boot to boot (and through the coil of course) to 22k (from 33k ohms). NGK and my local shops say that's perfectly ok. since the NGK's are each 5k ohms less than the stock setup (10k each stock boot), that accounts for the 10k ohm loss per boot-to-boot measurement(including coil). the bike seems to run stronger, especially in the midrange now. i have a seperate post "engine misses at low rpm's" and hopefully i cured that problem today. todays ride was soothing. for those interested, i believe the coils read about 12k ohms through the wires with the boots removed. that would make sense when you add in 2 stock boots of 10k ohms each..ie: 12k(coil & wire) + 10k(one stock boot) + 10k(one stock boot)= about 33k. ps:the stock boots are defiently the resistor type. i unscrewed the cap internals and held the resistor. the moral or the story is to get the old questionable boots off- you'll surely notice a difference. thanks again
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