Whats the best spark plug???Does it really matter??
Road Master
Joined: Aug 2006
Posts: 1,148
Likes: 157
From: Banning, CA
Just checked a bunch of new and used plugs and it certainly seems you are correct. All the non HD plugs were under 10ohms. The 2 new 6r12s were 25 and 35.
I've never had an issue with NGK, Autolite, Champion. Also have used NGK Iridiums.
I wonder if a properly tuned motor even needs the knock detection.
I've never had an issue with NGK, Autolite, Champion. Also have used NGK Iridiums.
I wonder if a properly tuned motor even needs the knock detection.
what happened to me when I was running Denso Iridiums. Thanks to 104 octane
boost I didn't hurt anything but left a nasty coating on the plugs - probably used
too much.
Road Master
Joined: Apr 2008
Posts: 994
Likes: 12
From: Alberta
I run e3 plugs. I indexed them. Thought what the hell I'm a sucker for a new plug that could give me some gains. My bike runs good. I like to think everything compliments each other. At the end of the day it's your bike do what you want.
Account Closed
Joined: Oct 2009
Posts: 682
Likes: 1
From: In the World
Just use HD OEM....make sure gap is right....and tourque to spec. Otherwise....improved performance from aftermarket plugs is BS...and a dumb waste of money.
Grand HDF Member
Joined: May 2008
Posts: 4,624
Likes: 189
From: Newcastle, Ca.
Yeah, several factors to consider. Tune, gas, altitude, how you ride/rpm's lugging the motor, mountain passes, 2up/weight...
Cruiser
Joined: Mar 2011
Posts: 144
Likes: 1
From: Romania, Otopeni
Hey guys!
Can you help me with a piece of information please?
Can you tell me the product code for NGK Iridium spark plug for a 2002 FLHRI?
And which of the NGK spark plugs are the best for my Harley?
Thanks!
Can you help me with a piece of information please?
Can you tell me the product code for NGK Iridium spark plug for a 2002 FLHRI?
And which of the NGK spark plugs are the best for my Harley?
Thanks!
Road Master
Joined: Aug 2010
Posts: 1,067
Likes: 2
From: New Hampshire
I thought it was going to be a while before I could use this new trick.
Let me Google that for you.
http://lmgtfy.com/?q=NGK+Iridium+spa...r+a+2002+FLHRI
Let me Google that for you.
http://lmgtfy.com/?q=NGK+Iridium+spa...r+a+2002+FLHRI
Outstanding HDF Member
Joined: Apr 2010
Posts: 2,477
Likes: 14
From: Western MD
I thought it was going to be a while before I could use this new trick.
Let me Google that for you.
http://lmgtfy.com/?q=NGK+Iridium+spa...r+a+2002+FLHRI
Let me Google that for you.
http://lmgtfy.com/?q=NGK+Iridium+spa...r+a+2002+FLHRI
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Outstanding HDF Member
Joined: Apr 2010
Posts: 2,477
Likes: 14
From: Western MD
i am a firm believer in putting back in what the manufacture put in.. champions for mopars, ac delco for gm, autolite for fords, ngk for ricers and bosch for germans.. harley uses champion and that is fine by me. i can get standard champions at autozone for 1.99 each all day long..
Road Warrior
Joined: Sep 2009
Posts: 1,257
Likes: 2
From: Gastonia, NC
Went out a couple of weeks ago and bought a new set of plugs. HD's (which I understand are made by Champion anyway). Gapped them, put a little never sieze on the threads and had them ready. Removed the original plugs. They looked so good (gap good and burning a light brown) that I just put them back. That was at 17,000 miles.