Topic: Spark Plugs - Resistor or Non-Resistor (Canadian Model)

[stikman]

I've got a 77 CB750A in Canada.  Wondering if anyone knows why the Canadian Model came with DR8ES-L plugs?  The US models came with non-resistor plugs.  Would they really have changed the plug caps for the Canadian models?  Is there any way to tell if the plug caps are resistor or non-resistor?  What would you recommend running with?

Cheers

[stikman]

Anyone?

[05c50]

I have no idea why the Canadian model would be different than U.S. model, but you can check the plug caps with an ohm meter to check resistance.

...Paul

[stikman]

Thanks Paul.  Did some resistance testing.  The stock plug caps have about 5 ohms resistance and DR8ES plugs have about 4 ohms resistance.  No reason to run both I guess.  Gonna go with D8EA's.

[birdmannn101]

I've got a 77 CB750A in Canada.  Wondering if anyone knows why the Canadian Model came with DR8ES-L plugs?  The US models came with non-resistor plugs.  Would they really have changed the plug caps for the Canadian models?  Is there any way to tell if the plug caps are resistor or non-resistor?  What would you recommend running with?

Cheers

Stikman, I always order my plugs direct from NGK.  I see that they have your plug for $2.89

http://www.ngk.com/SearchResults.aspx?kw=DR8ES-L

Dan

[Flyin900]

I think you mean 5K ohms not 5 ohms on the caps and the plugs are usually the same resistance, if they have an R designation. It seems the general thought is there isn't really an issue with the dual resistance from both sources. If you have a chance to use the D8ES or L if available in non resistor, that would be my personal choice. It really is meant for radio interference suppression, so not really needed on these old bikes.

The L designation is for a half a heat range cooler I believe and is between a DR8ES and a DR9ES from what I can see on the NGK site.