Radio Suppresion Coils????

[Ken Smith]

I’m working on a 1964 Johnson FDEL-18. Its pretty rough but its got great compression so I’m going for it. It has 2 what appears to be coils in the grounding wires going to the points.I’ve never seen this before. The best I can come up with is “radio Suppresion coils” that I found in the 1964 accessory catalogue but they only show them for 28 HP and up. My question is – What are they for and do I really need them? Thanks Ken

www.kenadianoutboards.com

[Ken Smith]

Another Picture ?

www.kenadianoutboards.com

[frankr]

That’s what they are. They suppress the “noise or static” that the ignition can cause on radios, fish finders, depth finders, whatever. Do you really need them? Let’ just say I knew they existed, but never saw any.

[Ken Smith]

Thanks Frank. That’s interesting. I’ve run alot of motors with radios and fish finders and never had any problems with noise or static. I’ll throw them in a drawer and in case I ever have static problems I’ll put them back on. Thanks Again. Ken

www.kenadianoutboards.com

[Mumbles]

Solid core plug wires and standard plugs emit more RF noise than carbon core wires and resistor plugs do do and these were meant to keep that annoying noise down on your AM radios. RF noise isn’t too much of a problem these days as most people listen to FM radio and transducer cables and other electronic cables in your boat are heavily shielded to prevent picking up RF interference.

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