When do I change spark plugs
Cruiser
Joined: Dec 2010
Posts: 150
Likes: 18
From: South Florida
Just changed mine after 10k. Did not notice any difference but I feel better knowing the plugs shouldn't fail for another 10k at least.
Really?
Ultimate HDF Member
Joined: Apr 2010
Posts: 7,138
Likes: 26
From: Southern Oregon
If your plugs are rusty change them. Unless their fouled I personally think changing a plug every 5K is a waste of money. I usually pull mine to inspect them and check the gap every 3-4K. My current plugs have 15k and look fine. I also use the copper anti-sieze
Cruiser
Joined: Jul 2014
Posts: 105
Likes: 1
From: Virginia
I got new plugs and was wondering if it will make the bike feel/sound a little different? I bought the bike used a couple months ago and just got the plugs changed, I rode it home for about 10 min and it just felt a little different and sounded a little different. The old plugs looked pretty old and the gaping was off slightly.
Have a '10 Iron
Have a '10 Iron
Ultimate HDF Member
Joined: Apr 2010
Posts: 7,138
Likes: 26
From: Southern Oregon
I got new plugs and was wondering if it will make the bike feel/sound a little different? I bought the bike used a couple months ago and just got the plugs changed, I rode it home for about 10 min and it just felt a little different and sounded a little different. The old plugs looked pretty old and the gaping was off slightly.
Have a '10 Iron
Have a '10 Iron
My .02
I never remove plugs on a hot engine and always torque by hand. Insure the treads are very clean and reinstall with a light coat of anti-sieze. I also like to use a light coat of dielectric grease inside the plug wire boot
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