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Try grounding the braid to the sparkplug with a small hose clamp around the plugs metal base [the part that you tighten with a socket]. This works very well and is more than adequate. The crimp lug to a threaded fin will work fine. Heat is not an issue for this application and it’s minimal.


If the plug is tapered and it should be and the head chamfered or countersunk the gasket is not required.

Good Luck