Plugs?
Ultimate HDF Member
Joined: Mar 2008
Posts: 5,040
Likes: 3
From: Nice home on the NorCal Coast
I'm using the SE Platniums in my RK and will be for the foreseeable future because I bought a half dozen on sale for less than the standard ones. 
Lots of interchangeable plugs out there,
Krusr
Lots of interchangeable plugs out there,
Krusr
Elite HDF Member
Joined: Dec 2007
Posts: 4,271
Likes: 29
From: Green Country,Oklahoma
I run 07 Buell plugs in my Sportster to get around a pinging issue under hard acceleration,they are a cooler plug,really helped,they are a 10r something,Harley plug,the sport uses the same plug as my 05 EG,but no pinging issue with the 05,or I would put those plugs in there also.
Road Master
Joined: Jul 2006
Posts: 862
Likes: 1
From: Western PA
At 8k miles I installed NGK plugs in my ultra. Soon after the check engine light started coming on. I took it to the dealer and the code was that the rear cylinder had miss fired. This is a common thing I was told. I did some research and changed back to HD plugs. This ended the problem.
Maybe I did not have the plug wires pushed on all the way. I took the bike to the dealer three times to have the codes cleared. They could not find a problem. The bike ran fine, I never noticed a miss fire.
Try a different brand and if you have the same problem you can always go back to HD plugs.
Maybe I did not have the plug wires pushed on all the way. I took the bike to the dealer three times to have the codes cleared. They could not find a problem. The bike ran fine, I never noticed a miss fire.
Try a different brand and if you have the same problem you can always go back to HD plugs.
Big Kahuna HDF Member
Joined: Apr 2008
Posts: 38,428
Likes: 896
Keep in mind that the plugs and wires are a part of the Ion Sensing system that HD uses as a means of detonation sensing. Plugs that offer a resistance that differs from stock could cause performance problems.
Seasoned HDF Member
Joined: Jun 2006
Posts: 28,580
Likes: 3,957
From: Vermont
I run Autolite 4164's for one because they are alot cheaper than the HD pricewise and just as good if not better.
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Stellar HDF Member
Joined: Dec 2005
Posts: 2,598
Likes: 52
From: South Jersey
I run the same plug. Cost me about 1.50 each at advance auto. HD plugs are about 13.00 a pair!
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I was thinking about the SE triple platinum. I have always run a platinum plug in my other vehicles. Just a thought. I am getting ready for my 1000k (actually 1500) change to a synthetic oil, do my stage 1, pipes and was going to do plugs too.
