which spark plugs

Reply Subscribe

Thread Tools

Search this Thread

Jan 17, 2011 | 07:40 AM

#31

galtjunk

Stellar HDF Member

Joined: Nov 2007

Posts: 2,121

Likes: 299

From: New Mexico-No, you don't need a passport.

Quote:

Originally Posted by 96roadking

Just looking at your location, I almost have to ask....which part of the USA isn't New Mexico?

I know it's in the US, but I have been asked the the question many times.
Someone wrote a book about it. I think the title is "One of our 50 is missing".

Jan 29, 2011 | 07:37 AM

#32

jrice1959

4th Gear

Joined: Jan 2010

Posts: 8

Likes: 0

From: Douglasville, GA

I like Autolite Radian plug. Like platinum. Good burn.

Feb 6, 2011 | 11:09 PM

#33

V2Evo96

Road Warrior

Joined: May 2009

Posts: 1,945

Likes: 3

From: Victoria, Australia

I have a little two stroke 800 watt generator made in chiwan. Had a hell of a time starting it and it died from time to time for no reason taht I could find.

Swapped the chiwan plug out for the OEM HD plug and it has run properly ever since.

Feb 7, 2011 | 06:29 AM

#34

miacycles

Elite HDF Member

Joined: Sep 2007

Posts: 4,468

Likes: 12

From: Bluffton, South Carolina

I know this doesn't help too much, we use either Champions or Autolites. It's our customers choice which one. Both work well, copper ones work better. If you change the plugs when you change the oil you should never have a problem.

Feb 7, 2011 | 10:21 AM

#35

calabera

Intermediate

Joined: Feb 2011

Posts: 48

Likes: 5

From: pa

What do you gap the plugs at? also do you put anti seize on the threads? do you go by the touque specs for tighting im new to the evo

Feb 8, 2011 | 06:31 AM

#36

NutterFLH

Cruiser

Joined: Jan 2011

Posts: 127

Likes: 0

From: Poland, EU

Make sure You get genuine Champion plugs. Fake Champs are manufactured in China, bad quality (Oh! Really?). Those are of 2-piece construction, usually snapping off so You end up with a threaded piece in cylinder head and the other part of the plug in Your hand.

I just got a set of RN12YC from local Champion store, which I`ve found recently. Sure those are genuine.

I tried many other brands, GM, NGK, Screamin Eagle V-Split (those are good, too) and some european plugs. Champion is the best choice.

Yes, I know. Nothing new in this post.
Try Screamin Ealge V-Split plugs, made by Split Fire.

Feb 8, 2011 | 10:54 AM

#37

Havoc88

Cruiser

Joined: Aug 2008

Posts: 159

Likes: 1

I run the standard NGK's but I have SE heads so they are the twin cam 12mm, never had a problem with them and I normally buy them in 10 packs online for a cheaper price.

Feb 8, 2011 | 11:09 AM

#38

RidemyEVO

Thread Starter

Stellar HDF Member

Joined: Apr 2009

Posts: 3,039

Likes: 11

From: Northern Ontario

I ordered in some autolites that I'll be trying.
Thanks for all the input.

HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

8 Best Harley-Davidson Motorcycles Ever

Pouria Savadkouei

10 Worst Harley-Davidson Motorcycles Ever

Pouria Savadkouei

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Verdad Gallardo

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Verdad Gallardo

Harley-Davidson Reveals Super Cool Cafe Racer Concept

Verdad Gallardo

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Verdad Gallardo

10 Motorcycles You Should Never Buy

Joe Kucinski

10 Things Harley-Davidson Needs to Fix in 2026

Verdad Gallardo

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Verdad Gallardo

The Best and Worst Harley-Davidson Moves of 2025

Verdad Gallardo

Feb 8, 2011 | 11:47 AM

#39

Jim Kraft

Stellar HDF Member

Joined: May 2009

Posts: 2,856

Likes: 127

From: Middle of Kansas

I use to take the Harley plugs for my 84 Sportster, and using a zona saw, I split the electrode to make splitfire plugs out of them. I thought they did work better. More power and easier starting.