Spark plugs
Outstanding HDF Member
Joined: Jul 2007
Posts: 3,410
Likes: 8
From: Knoxville, TN
Either I'm stupid for spending the money...or I'm **** about my maintenance schedule.
Plugs are $3 bucks, each...$6 bucks, total.
I change mine with every oil change, 5000 miles.
Actually, I'm neither of the above...I do it because it's easier to remember, for me.
Plugs are $3 bucks, each...$6 bucks, total.
I change mine with every oil change, 5000 miles.
Actually, I'm neither of the above...I do it because it's easier to remember, for me.
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
After I had my SERT put in...I figured I'd start fresh and put in a new set of plugs. Naturally I asked for the Screemin Eagle plugs. The tuner said just put a new set of stock plugs in cause the bike was tuned to the resistance of the stock plugs and SE plugs wouldnt be the right way to go.
I don't know crap about the resistance of a plug and tuning BUT...thats what they said. So I put two new stock plugs in. Don't know why they didn't take me for the price of the SE plugs but they didn't.
I don't know crap about the resistance of a plug and tuning BUT...thats what they said. So I put two new stock plugs in. Don't know why they didn't take me for the price of the SE plugs but they didn't.
Elite HDF Member
Joined: Apr 2006
Posts: 3,948
Likes: 54
From: The Burgh
I changed mine yesterday at 5,200 miles. Paid $4.78 for 2 NGKs at Advance Auto Parts. I did it because I loaded a new map and I want to visualize the impact on the plugs. Otherwise, I would have waited till I hit 10,000 miles to replace them.
Cruiser
Joined: Aug 2009
Posts: 164
Likes: 1
From: Phoenix
Champion plugs are H/D plugs without the H/D. On sale for .97 cents.
http://www.nightrider.com/biketech/hdsparkplugs01.htm
http://www.nightrider.com/biketech/hdsparkplugs01.htm
Last edited by vindex1963; Nov 4, 2009 at 09:51 AM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
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
Elite HDF Member
Joined: Apr 2006
Posts: 3,948
Likes: 54
From: The Burgh
Champion plugs are H/D plugs without the H/D. On sale for .97 cents.
http://www.nightrider.com/biketech/hdsparkplugs01.htm
http://www.nightrider.com/biketech/hdsparkplugs01.htm
If your car or pickup can go 60k to 100k miles with out a tune up, and you don't change
spark plugs in that time frame why change them on your H-D. There is no lead in gasoline any more, most all cars and motorcycles are now fuel injected. I can see changing plugs more offten with a carbureted engines but not on a fuely dose the gap change much in 10k, what is the color on the plugs? ? ? Back in the 60s and 70s we changed a lot of spark plugs because the lead in the gas and we ran carburetor we watch the color of the plugs to check the jetting. I don't see it. I think the dealers are making money on service any way they can. I think you should check the spark plugs, and change them when they really need to be changed.
spark plugs in that time frame why change them on your H-D. There is no lead in gasoline any more, most all cars and motorcycles are now fuel injected. I can see changing plugs more offten with a carbureted engines but not on a fuely dose the gap change much in 10k, what is the color on the plugs? ? ? Back in the 60s and 70s we changed a lot of spark plugs because the lead in the gas and we ran carburetor we watch the color of the plugs to check the jetting. I don't see it. I think the dealers are making money on service any way they can. I think you should check the spark plugs, and change them when they really need to be changed.