SOHC.co.uk Forums > CB500/550

Ignition Coils recommendation

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florence:
Over the years I have had a lot of trouble with errant sparks, especially when damp or wet.  A year or so, I replaced the original coils with aftermarket ones but not completely happy with their performance either.  I have new plugs and new caps.  Periodically, number 1 cylinder drops out with a weak spark.  I tried reducing the spark plug gap which has helped.

Does anyone have a recommendation for good reliable replacements as I am not sure about the quality of the ones I am using added to which they don't fit correctly on the frame anyway.

Thoughts??

McCabe-Thiele (Ted):
I think I read here somewhere that a firm is selling the original brand ones sourced from the original Honda manufacturers - pretty sure someone here will know who - that might have been for the 400 though.

I fitted these Hendlers  to my 500 as a short term fix, the bolt mount centers are 10mm narrower so I fitted a short link bracket between frame & coils. Can't comment on the long term reliability as I only did a few miles on them before I stripped my 500 down.

https://www.ebay.co.uk/itm/151925589049

Johnwebley:
I bought a pair from Boyer electronics for the 500,

But a cheap Chinese copy for the 200,

Purely as it had a low primary resistance, it cured all the running issues I had,



Sent from my SM-A546E using Tapatalk

florence:
Thank you.  Does anyone know what the primary resistance should be?

Oddjob:
You tried fitting a silicon sleeve over the HT lead like the original Honda ones had? If you can fit it right up to the coil and right up to the sealing rubber on the HT cap that should stop any arcing

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