Spark Plug Caps, Modification

[GeorgeS]

As you all know our plug caps have a Resistor installed in them, ( 5000 ohms or so )

in addition to the " Resistor Spark Plugs "

Is this extra resistance, really needed ?? Well I guess thats debatable

 

Anyway, for what its worth, if anybody, is interested, I've been working on the old 82 CX-500C that Resides, in MY Garage. (( Over in the Corner ! )) Carb rebuild, Tune up, etc etc. Anyway, I decided to replace the plug wires due to Age, ( 60K on the bike ) .

 

Checking resistance on right side, plug cap, --- found that it was OPEN Circuit, pulled it apart, removed resistor, and it was OK, ( 5000 ohms ) but up in the top of the cap, the Connection was burned off an OPEN CIRCUIT. So, it was fireing the plug, but Arching Across an open circuit.

 

OK, on the CX-500 web site, found a good idea, Replace the Resistor with a chunk of 1/8 diameter brass rod. !!! So the old CX plug cap went into the trash, and took an old spare left over from the 89 ( now sold ) and pulled out the Resistor, and installed a chunk of brass rod, and installed on the CX-500.

 

Did this on both sides, and put in a new set of Resistor plugs, Runs Great, Now have 5 k of resistance, instead of 10k

as in the stock set up.

 

So: If you want, you can do this to your Venture Plug caps. Easy to do.

 

Is this a good thing to do ??? not sure, -- but --- if you want to do it, its easy to do. just get a chunk of 1/8 brass rod at the hardware store.

[Bob Myers]

I can hear one or two plugs crackling in the intercom and on AM radio. I may very well have same scenario as you with the open.