Just wondering... Is it really necessary to apply anti-sieze lubricant to spark plug threads before installing? My bike is a 1998 FLHTC (Evo motor).
The plugs I'm going to install are NGK BPR7ES-11 (I thought I'd try a colder plug and see what happens). I've read that NGK plugs have a good coating on the threads. I change plugs at HD specified intervals.
Does anyone not use anti-sieze?