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Changing plugs. When?

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Old Aug 7, 2008 | 07:24 AM
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Default Changing plugs. When?
I have an 06 Ultra with 17,000 miles. It runs fine but have been thinking maybe it's time for a set of plugs.

How long do you guys go on a stock set?
 
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Old Aug 7, 2008 | 08:15 AM
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Every 10k miles per the service manual.
 
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Old Aug 7, 2008 | 08:16 AM
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I change mine when they look ugly - usually every oil change.
 
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Old Aug 7, 2008 | 08:20 AM
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Hi, my 02 flh has 28,000 with Harley plugs (dont know if there are original) but from being a Dyno opperator and owning a tune up business I say if the electroids arn't burnt ,rounded off or arn't coated with anythig don't change them. with the electronics plugs last way better than they used to. Don
 
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Old Aug 7, 2008 | 08:30 AM
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If you check your owners manual and do the services as they say you can't go wrong !! They been doing this now for about 105 years you know !!
 
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Old Aug 7, 2008 | 08:57 AM
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any recommendations on plug brand?
 
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Old Aug 7, 2008 | 08:59 AM
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Thumbs up Plugs
Stick with Harley plugs!!!
 
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Old Aug 7, 2008 | 10:03 AM
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For an 07 the book said 20K I would also stay with H-D plugs.
 
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Old Aug 7, 2008 | 11:09 AM
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Originally Posted by 02flh
Hi, my 02 flh has 28,000 with Harley plugs (dont know if there are original) but from being a Dyno opperator and owning a tune up business I say if the electroids arn't burnt ,rounded off or arn't coated with anythig don't change them. with the electronics plugs last way better than they used to. Don
Second that. No point in throwing away perfectly good plugs.
 
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Old Aug 7, 2008 | 11:16 AM
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I personally use Autolite 4164's with excellent results and they are cheaper than the
6R12's. I change them out every 10k mark
 
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