Spark Plugs?

[Chris mc]

What's everyone's vote on which Spark Plugs to use?
Again, I bought a used 2006 Heritage Deluxe with 11,000 miles, so I am going to change them - currently has the HD SR12 installed.

 

[Jeff Klarich]

There's a spark plug poll here on the forum but for some reason I can't find it. The most widely used plug is the stock Harley plug that came in your scoot.

 

[gator508]

As Jeff says the HD plug should serve you well. I have only used HD in my 08 with 96 c.i. engine. Never any issues.

 

[ThunderRogue]

Spark plug questions are right up there with oil questions. Groan... not another one! LOL! Just kidding. Stock plugs work just fine. There's the great debate over knock sensors on EFI bikes though. The engineers at the factory designed the sensors to work with stock plugs. Some say even a little bit of metallic "thread lube" will trigger them to retard timing. Non EFI bikes however, it's owners choice and a lot prefer NGK.

 

[Jeff Klarich]

I still can't find the spark plug poll but here's something else to look at as far as available plugs.
I'd still stay with the Harley plug tho.

Spark Plug Interchange Guide

 

[liquid_wrench]

I use stock Harley plugs.

 

[dolt]

NGKs for me