Spark Plug Change Interval


Technical information and Q&A applicable to all years and models of Goldwings
Post Reply
User avatar
am3098
Posts: 83
Joined: Mon Jun 17, 2013 5:10 am
Location: Bazetta Twp. OH
Motorcycle: 2010 Candy Caliente Red GL1800

Spark Plug Change Interval

Post by am3098 »



The spark plugs were changed in my 1500 about 35K miles ago. The bike seems to run good and fuel mileage hasn't dropped off, but I'm just curious of what the recommended change interval is for plugs on the 1500?

Thanks,
AJ


A.J. Musial
User avatar
dingdong
Posts: 4183
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Spark Plug Change Interval

Post by dingdong »

My manual calls for 8000 mile intervals.
User avatar
MikeB
Posts: 4030
Joined: Fri Dec 04, 2009 12:54 pm
Location: Tacoma, WA
Motorcycle: 1998 - GL1500 Aspencade
199K Miles
2017 - GL1800 Audio Comfort
36K Miles
Contact:

Re: Spark Plug Change Interval

Post by MikeB »

Changing the plugs now is not a bad idea but you will most likely not see any appreciable change in performance and/or fuel economy.

I think mother Honda advises plug changes at 8,000 miles to maintain fuel emissions at the lowest possible level but I do not have an exhaust analyzer to test that theory.

Those plugs will work perfectly well past the 60,000 mile mark.
MikeB
1998 - GL1500 w/195,500 miles ~ 2017 - GL1800 w/32,000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
Industrial Maintenance Tech - 1992 - 2014
Retired in Tacoma, WA
User avatar
keithg64
Posts: 805
Joined: Thu May 21, 2009 9:47 pm
Location: Geneseo, IL
Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Spark Plug Change Interval

Post by keithg64 »

The changing of the plugs is in my winter maintenance schedule. I'll run between 15k to 20k miles per year.
It's not what you buy, it's what you build.
FM-USA
Posts: 3395
Joined: Wed May 18, 2011 8:40 am
Location: Near 60031
Motorcycle: 91-i

Re: Spark Plug Change Interval

Post by FM-USA »

My spark plug change interval is when one cylinder starts misbehaving. .. .. NOOoot. :P

Every year I pull out the EZ to reach 2 rear plugs and ohm test it. As long as the ohms are not climbing, I put'r back in after checking the gap. I'll also look for material degradation on the business end of the plugs, don't need a piece flopping around in the cylinder. That's extremely rare to happen.
So far I got way over 100K on a set of Iridium plugs, but I do have another set on hand when needed.
When I do one thing, I'll sidestep a little & learn many things.
User avatar
WingAdmin
Site Admin
Posts: 23781
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (sold)
1998 XV250 Virago (sold)
2012 Suzuki Burgman 400 (wife's!)
2007 Aspen Sentry Trailer
Contact:

Re: Spark Plug Change Interval

Post by WingAdmin »

I change my plugs every other year. Not because I notice a decrease in performance - but because I worry about the steel-threaded plugs bonding themselves into my aluminum head!
User avatar
julimike54
Posts: 675
Joined: Sun Feb 01, 2015 12:21 pm
Location: Euless, Texas
Motorcycle: 1986 GL1200A original owner
2016 HD FLTRU

Re: Spark Plug Change Interval

Post by julimike54 »

Maybe that's why I change mine? Just don't like the idea of anything sitting around too long, can't be good, right!
Image
Riding anything is a good day!
Mike
User avatar
am3098
Posts: 83
Joined: Mon Jun 17, 2013 5:10 am
Location: Bazetta Twp. OH
Motorcycle: 2010 Candy Caliente Red GL1800

Re: Spark Plug Change Interval

Post by am3098 »

Thanks for the information guys. I went ahead and changed the plugs since they're reasonable at Cyclemax ($15 for 6), and it was pretty easy job.

In doing some research, I ran across several opinions pro and con using anti-seize on spark plugs. I've always used it for the reason that WingAdmin noted; steel plugs in aluminum heads. Permatex recommends the use of copper vs. aluminum anti-seize, I assume for better conductivity. However, NGK has a tech bulletin out discouraging the use use anti-seize. Their tech support people said that if the threaded area of the plug is shiny, that's a coating they apply specifically to prevent seizing. They claim that using anti-seize may cause over tightening the plug and mess up the threads or break the plug off. I went ahead and used a small amount the copper anti-seize anyway since I was able to pick up one of those small job packets that they have by the registers at the auto parts store. I also torqued the plugs to the 12 ft. pound factory spec. The old girl fired right up and runs smooth as silk; not bad for a 22 year old bike; I love my Goldwing!
A.J. Musial
User avatar
Big Bee
Posts: 35
Joined: Fri Feb 06, 2015 10:20 pm
Location: Boise, Idaho
Motorcycle: 2010 GL1800
1988 Honda Elite 250

Re: Spark Plug Change Interval

Post by Big Bee »

I changed my plugs yesterday a 1000 miles before the recommended interval (16,000) in preparation for an upcoming trip. The old plugs have normal wear, and all were 0.003 inch out of tolerance on the high end. Myself, I use anti seize compound each time I change plugs. There isn't a problem since a ground is also through the plug body and gasket on NGK's.


Post Reply