Spark plugs

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Nov 4, 2009 | 06:16 PM

#21

OwnerOfHarriet

Road Master

Joined: May 2008

Posts: 1,178

Likes: 5

From: Central Calif

I put in iridium plugs at 6,000 miles --- at 52,000 they still look brand new and perform the same as brand new

Nov 4, 2009 | 06:23 PM

#22

Kumite

Tourer

Joined: Jun 2009

Posts: 432

Likes: 5

From: Tennessee

Met an "old school" type Harley guy on my most recent 3200 mile trip. In conversation he iterated that he replaced his battery every year but had never replaced his spark plugs after 110,000 miles on his EG.

Sounds misplaced to me but... to each his own.

R Todd

Nov 4, 2009 | 08:30 PM

#23

vindex1963

Cruiser

Joined: Aug 2009

Posts: 164

Likes: 1

From: Phoenix

Quote:

Originally Posted by OwnerOfHarriet

I put in iridium plugs at 6,000 miles --- at 52,000 they still look brand new and perform the same as brand new

They are nice. I have a set that are one step colder that I put in when the temps go over 105. It stops the heat induced pinging.

Nov 4, 2009 | 09:03 PM

#24

D2R

Banned

Joined: May 2008

Posts: 787

Likes: 2

From: Western Wyoming

I replace mine about every 15k mi.,gap my plugs @.040 in.,use anti-seize compond on the threads and don't over tighten.I've heard too many horror stories of the threads coming out with the plug.

Nov 4, 2009 | 09:51 PM

#25

wjl24

Road Captain

Joined: Aug 2005

Posts: 743

Likes: 4

From: Ohio

Quote:

Originally Posted by OwnerOfHarriet

I put in iridium plugs at 6,000 miles --- at 52,000 they still look brand new and perform the same as brand new

What's the benefit of iridium plugs?

Nov 4, 2009 | 10:38 PM

#26

CGLTD

Outstanding HDF Member

Joined: Apr 2007

Posts: 2,272

Likes: 279

From: .

wjl24-
Great Avatar!

Sorry guys had to throw that in.

Nov 5, 2009 | 09:27 PM

#27

vindex1963

Cruiser

Joined: Aug 2009

Posts: 164

Likes: 1

From: Phoenix

Quote:

Originally Posted by wjl24

What's the benefit of iridium plugs?

Google it and get ready for hours of pro-con reading. They stopped the ping in my motor going to a colder heat range.

Nov 8, 2009 | 03:00 AM

#28

OwnerOfHarriet

Road Master

Joined: May 2008

Posts: 1,178

Likes: 5

From: Central Calif

Iridiums are supposed to last longer and in my experience, they do -- I have had them on 2 bikes and ran one set 32, 00o miles and they looked brand new (sold the bike) and now in this bike they have gone 52,000 and look brand new -- they cost me 8 dollars a piece so for me, they have save me money for buying new plugs and time changing them