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Re: Is the GM HEI module necessary?

Posted by sgtslag on Jul 13, 2011; 5:14pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Is-the-GM-HEI-module-necessary-tp3165080p3166721.html

I looked into the GM Coil Mod, myself.  I could not figure out exactly which coils to use, and after much consideration, I went with NGK Iridium plugs, instead.  I know my coils are weak, and the plug wires could do with an upgrade, but for $32 ($8/plug), my ignition system now works flawlessly.  For me, it was just easier, and an absolutely sure-thing, to replace the plugs (no chance of burning out the ignition system, which the wrong coils could have accomplished; the Iridiums will last 50k+ miles, so not a bad return on my investment).  YMMV.  Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII