Originally Posted by
speedracerntrixie
Speedy, 3W and DA do not run resistors in their plug caps and run CM6 plugs as well. I had never seen this until the Chinese engines started showing up. However I do not think that adding the resistor is going to hurt anything. Once you source the wire you may want to just order up a couple DLE cap kits, they come with the resistors and instructions. The Reichmouth ( I know that is spelled wrong ) ignition that comes with the D&B engines is really well made and gave me no issues during hundreds of flights. In fact it was the most maintenance free engine I have ever owned.
Had not caught this a few weeks back but every DA ignition I have and the replacement caps have the resistor in place just like the Chinese Rcexl caps. I always thought that Rcexl just copied DA in this regard. The caps are almost identical to each other and clearly whoever made the dies and molds for the Chinese cap had the DA in their hands at the time.