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CB550K3 Plug cap Resistance

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nairb:
The plug caps on my cb550k3 are as old as the Dinosaurs..... But the engine starts ok and does idle.

I thought I would check if they needed replacing, and maybe the plugs too(DR7ES).
I checked the resistance of each plug cap(NGK).  Some are 5k and both outer caps are 10K+ (ohms).

Now 2 questions.....
1. Should the caps all be the same resistance?  5k ohms.
2. If the caps have resistance then the plugs should NOT be .

My current set up is resistor in both caps & plugs.  Not good I suspect.

So a set of new NGK plug caps with 5k ohms and a new set of d7ea plugs(non resistor).

Ta
Nairb

Nurse Julie:
Quote
My current set up is resistor in both caps & plugs.  Not good I suspect.

So a set of new NGK plug caps with 5k ohms and a new set of d7ea plugs(non resistor).

Correct.

nairb:
Thanks for the answer.  I have had this bike from new.... many years ago.  So I was unsure why I had ended up with resistors in both the plugs and caps.   

We do strange things when younger.

New bits now ordered

Bryanj:
There was a time when non resistor plugs had tobe ordered in rather than stocked and DS still lists resitor plugs as standardlast time i looked

K2-K6:
While the advice to use non resistance plugs with resisted caps is good, the two together is not technically wrong and won't produce a fault.

For some of these engine the specification for Canada market even makes that the primacy choice.

I understand that it holds technical advantage for lean combustion (of which the K3 is one example) to run with both resisted as it brings a different spark propagation to the ignition system.

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