That was true but other manufacturers are now offering their brands that meet Harleys specks.
Last couple years i've been running NGK's with no change in how it runs or performs.
Spark plug: fact and fiction
- Thread starter Jeff Klarich
- Start date
That was true but other manufacturers are now offering their brands that meet Harleys specks.
Last couple years i've been running NGK's with no change in how it runs or performs.
Thor68372rockon
New Member
I know this thread is old, But, I have to add in case someone is looking for a cheap bump in performance from those junk HD spark plugs. I have been a auto & bike mechanic for 30+ years & I came across these NGK irridion tip spark plugs a couple years ago & used them in vehicles & noticed a boost in throttle response & performance. So I tried them in my 2007 Electra Glide Ultra Classic & noticed the same bump in Performance. I have switched all my vehicles over to these plugs & have had very good luck. Hope this helps. Also I rebuild Engines, Transmissions, Transfer Cases & just about anything else I can get a re-build kit for. Gotta go ride now. Thanks for bein here HDtimeline.
Sorry for the mis-spell "Irridium Tip" plugs.
Sorry for the mis-spell "Irridium Tip" plugs.
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How do they work with the ION sensor? and do the meet or exceed what recommended?
redsox
New Member
thor- I also just ran across this post- bought NGK iridium plugs for my 07 883- went one range 'hotter' #6- cause fouling in #1cyl - I havent run it yet but dont want to explode any advice? thanx
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