Taylor Spiro Pro Silicone Leads

Fast Eddie said:

“Could be affected”...

In what way? What kind of symptoms might I expect to see?

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Pazon Smart-Fire and Altair instructions state the following which I believe applies to the majority of digital ignitions.

"5K resistor plug caps as supplied with the system should be fitted to the h.t. leads. Alternatively, resistor spark plugs can be used. Resistor plugs & resistor caps can be used, although it is not necessary to use both. Attempting to run the system without resistor type caps or plugs will result in excessive radio frequency interference (r.f.i.), which may cause bad running, misfiring and loss of ignition. For reliability, copper or steel cored h.t. lead should be used, we do not recommend using carbon fibre leads."

Tri-Spark:
"We recommend the use of spark plug suppressor caps with this system. Use 5k Ohm caps such as NGK LB05EP. Use Suppressor (resistor) caps or resistor spark plugs - not both together. An ‘R’ in the part number denotes resistor."


Boyer Micro-Digital:
"WITH THIS SYSTEM SUPPRESSED SPARK PLUG CAPS OF 5000 OHM MUST BE FITTED OR MAY PRODUCE BAD RUNNING."


Micro-Power (digital):
"Suppressed plug caps of 5000 ohms must be used with this system as radio frequency radiation can interfere with the microprocessor within the unit."


Electronik Sachse (digital):
"Spark Plug Caps
Only use interference-free caps for the spark plugs. A resistive component, is only needed at one point of the ignition system. This can be either a shielded spark plug, a shielded spark plug cap, a shielded HT lead or a separate resistor that goes in between the HT lead (atypical). Using the wrong plug caps may result in an unreliable ignition as they interfere with the electronics. Recommended are NGK caps with 5kΩ internal resistance."

Fast Eddie said:

Well I AM running Tri Spark...

Is having no suppressor likely to cause long term problems? Cause things to degrade? I am a Luddite and have no understanding of these things.

The only difference that I think I could detect from running my T140 without any suppressors was better cold starting. But that could have been placebo effect !

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Edit: I may have misread your question, so my response is one regarding a RFI suppressor to deal with interference between the EI and the v. reg. Not to one of using vs not using R-caps, leads or plugs.

I would think that if you haven't had any acute problems, you wont get any chronic ones.

But, I dont think you will know till you know.

IIRC, you are running a TS volt. reg. as well? So, I would think you should be all good. If not, then maybe you have some comeback to TS.

I run podtronics...

Jerry Doe said:

I run podtronics...

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I have a TS and a TS v. reg. BP7ES plugs, standard wires and NGK resistor caps.

No problems at all, knock on wood. Mostly a one kick start.

If I were you, I would get some standard leads and R-caps, and use a standard plug and fit the noise suppressor that TS recommend for Pods.

And when the snow clears off the plains, ride, baby, ride.

Yeah, just got another 4" of snow last night. Roll on spring. Bikes are reasy and so am I!

The TS is the only EI that I can think of that has its entire electronic package in a completely shielded space, you would think that it would be immune to EMI/RFI., I am not knowledgeable enough to know how effective the Norton points cavity may be at shielding the TS electronics. I use a 3 ohm dual tower 12v single coil, steel core wires, NGK BP7ES or N7YC plugs and NGK 5K ohm caps. I set the timing at an RPM where I'm sure the EI's advance is at maximum to the TS recommendation. My Norton is never hard to start, unless I think it is,,,,,"be the ball"

I applaud those of you who are adventurous enough to second guess the engineers that designed the various EI's that we use in our beloved antique English motorcycles; true risk takers with strong enough legs and arms to push their rides to a safe haven and/or walk many a country mile.

If your Norton has the benefit of a truly new ignition SYSTEM, and is hard to start you'll be needing to search for the fox in another field.

I don’t think it matters if the TS is shielded inside the points cover as it shares the electrical system, ground at the very least.

Maybe f you were riding next to someone it might help.

The Trispark is in a shielded enclosure but it is connected to a good antenna system.

batrider said:

The Trispark is in a shielded enclosure but it is connected to a good antenna system.

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You make a good point, and, as I mentioned in my post, I am not an engineer nor knowledgeable in how spurious RF/EM emissions may be transmitted or received; so I just follow the instructions from the manufacturers. I was as blind sided as most learning about the not-so-friendly interaction between the single phase PodTronics reg/rec with the TS, sort of a chicken and egg thing, but I did purchase the updated reg/rec.