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Discussion Starter · #1 ·
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?

Thanks:D
 

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Why wouldn't you want to use it provided you keep it on the threads and off the electrode and insulator??? HD manuals used to say put oil on the threads but never-seize it much better, in my opinion of course.
 

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I've used anti-seize for over 20 years . But I remember when I started riding someone was always trashing the threads on their bike when they would try to pull a plug.
 

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I always use anti-seize.
 

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Unless it is a major job to put on a lil seize on the threads, do it. You just cannot go wrong with a lil tlc...
 
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