Living in a country with no HD dealer it's really hard to get OEM parts even the smaller as brake pads , oil filter ... Heard that the best spark plugs to use are the HD ones and all others ( NGK ...) work too but never as good as the originals , is it true or you didn't notice any difference ?
Thnks

 

NGK are fine, any plugs are fine if they are the correct grade. You won't notice any difference.

 

BTW, as a fellow "Pacific Islander" I can source and send you any Harley parts you need.

 

Thanks for the answer and for your help i really appreciate ! Maybe meet you one day in your beautiful country ( my wife's from Otara and Tahiti )

 

If they are available, Autolite 4265's for Evo's are cheap and plentiful here. Perhaps you can get them there?

 

Stock HD plugs for and EVO are 404 (RN12YC) champion plugs, I get them for 1.50 to 2.00 apiece at the auto parts store. I've tried autolight and my bike didn't like them. I run NGK's (good but pricey) in our dirt bikes but not the HD.

 

I'm using NGK Iridium 2115 / BPR5EIX-11 gapped at 0.041". They work fine. And I use the same filter that I use on my Toyota RN Truck (22R motor). You should have no trouble finding that filter anywhere in the world.

 

i use the champions (rn12yc) too. they work just as well as anything else and they're cheep.

 

Thanks for all your answers !

 

Harley do not make plugs, they just brand them, so don’t be stuck on using “originals”.

By the way, your bike looks awesome.

Cheers

KC