which spark plugs
Stellar HDF Member
Joined: Nov 2007
Posts: 2,121
Likes: 300
From: New Mexico-No, you don't need a passport.
I rode a one lung thumper for years as my only means of transportation. If I fouled a plug it meant I got to push.
The only plug I couldn't foul with that bike was a Bosch platinum.
The HD runs fine on Champions and I am regularly running between 5000 to 9000 feet in altitude..
The only plug I couldn't foul with that bike was a Bosch platinum.
The HD runs fine on Champions and I am regularly running between 5000 to 9000 feet in altitude..
Outstanding HDF Member
Joined: Mar 2010
Posts: 2,877
Likes: 2
From: Hallsville, Tx.
I rode a one lung thumper for years as my only means of transportation. If I fouled a plug it meant I got to push.
The only plug I couldn't foul with that bike was a Bosch platinum.
The HD runs fine on Champions and I am regularly running between 5000 to 9000 feet in altitude..
The only plug I couldn't foul with that bike was a Bosch platinum.
The HD runs fine on Champions and I am regularly running between 5000 to 9000 feet in altitude..
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Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
Likes: 11
From: Northern Ontario
I got my order of 4165's , can anyone tell me the differnce of when one would run 4164's compared to the 4165's like what characteristics of the bike running would you look for? Or is more of the plug reading, white compared to dark insulator?
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Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
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From: Northern Ontario
XL 85-04
883/1200
Are you on a BT or Sporty with these plugs?
Grand HDF Member
Joined: Oct 2006
Posts: 3,660
Likes: 713
From: DFW
Last edited by GREENOHAWK69; Jan 13, 2011 at 02:58 PM. Reason: add "is"...so it is in English
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Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
Likes: 11
From: Northern Ontario
I guess these guys gotta update there table then http://www.harley-performance.com/ha...park-plug.html
Stellar HDF Member
Joined: May 2009
Posts: 2,856
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From: Middle of Kansas
Seems like I read in American Iron Magazine, that Harley plugs were made by Champion to Harley's specs, and there was no direct replacement Champions. I have been running Harley plugs in my 99 now for 10,000 miles with no problems, but I will probably change them out this summer just because. I did have them out at about 9,000, and they looked great.
Intermediate
Joined: Apr 2007
Posts: 44
Likes: 0
From: land of misery
champion 12yc, but i know guys with pretty much same bike and they have tried many different plugs some go one way ,some goother ways. think you have to play around and find what you prefer . not trying to be a smart a@# just an honest opinion
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Grand HDF Member
Joined: Oct 2006
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From: DFW
I guess these guys gotta update there table then http://www.harley-performance.com/ha...park-plug.html
