Just curious where you guys buy your - Spark Plugs? I saw Walmart has Autolite plugs for my bike and some NGK.

 

Ive paid alot at dealer,cause I am there. Got the champions off Amazon.

Every now and then wonder about a fancy one for starting,though I tell myself not worth it

 

I like the double iridium not because of performance but they last a long time.

 

Interesting, spark plugs are part of ion knock sensing on Harleys, right ? Is using other brands require a different tune ?

 

Now that’s way above my pay grade

 

oem

 

Found this explanation of how it works. Technically I can see where different brands might affect the process.

 

I buy mine at the dealer. It's not that much difference in price.

 

Beware the imposter NGK Iridium plugs on Amazon. it's a thing, sadly.

 

That almost sounds like one of those, "Ask me how I know", stories.........