SOHC.co.uk Forums > CB500/550
Plug caps and plugs
Sesman:
Mmmm…so France and Canada are at odds with each other….
I’ve run D7ES, D7EA and DR7ES successfully in the 550 and without detecting any change to starting and running characteristics. The 550 F2 manual supplement recommends both D7ES and DR7ES, presumably to cover all continents.
But of course I don’t do big mileage….that’s what the GS is for.
deltarider:
Resistors in both cap and plug will result in 20kΩ in one circuit. Goldwings and similar models equipped with radio's - and sometimes even citizen band radio's - had this. My Goldwing GL1100D Interstate in Canada had it. As far as our models, I can't see any benificial effect coming from an overdose of suppression. All statements that there's is, have failed to deliver proof. In the 80s I have contacted Honda The Netherlands on the subject. I was advised to fit 5kΩ plugs. That is 10kΩ in one circuit. Plenty to prevent interference and that's what the suppression is for. In all automotive litterature I know, there's no mentioning of any further benificial effect. None whatsoever. But... with these unseen mysteries, it's a great way to profile your self as an expert as nobody is able to proof you're wrong. The international forum sees a lot of similar claims...
Sesman:
Yes, totally. I’ve always thought that to present oneself without proof is a great way to demonstrate you are not an expert? ;D. At college we were given formulas to remember and regurgitate. At University we were given the answers and had to prove them. We were evaluated on the proof detail and content. It was a much more challenging concept and a much sterner test of understanding and expertise.
K2-K6:
The Honda directions do establish that it's not detrimental though to run both, that is factual as they've completed the r&d for the markets in which they operate on the combustion theory and practice of these engine.
Enlightenment of if there are any substantiated benefits are a seperate topic, for which there is interesting experience around what that may entail.
Just because one person "states" their reading of a topic has no benefits doesn't mean they don't exist. That's what exploratory research seeks to illuminate.
There was electricity existing on this planet essentially forever, which would nobody knew about. The curios "discovered" it and changed the way of thinking.
There's plenty of combustion characteristic research available that's progressed since these bikes were designed (that will always happen) I've put links before that drew no interest in that topic, that I believe shifts perception of support systems.
Penicillin, another development example.
SteveD CB500K0:
Is there much broadcast (analogue) radio left for us to interfere with?
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