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post #1 of 7 (permalink) Old 02-17-2011, 10:43 PM Thread Starter
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Spark Plug issue

I got a note from Jamie at Fuel Moto recommending staying with stock HD spark plugs for proper knock sensor operation or something to that matter. I lost his e-mail. HD carries three types: OEM", "SE for Stock Compression engines". and SE for High Compression engines".

I got a 2010 103ci with SE255 cams. Can't determine which plugs I have, and I can't pull them right now. Any thoughts?

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post #2 of 7 (permalink) Old 02-18-2011, 02:52 AM
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stock plugs are hard to beat. you don't need to pull them you can see what they are just by looking at them. stock will say 6R12 on them
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post #3 of 7 (permalink) Old 03-21-2011, 07:34 PM Thread Starter
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Hard to see with my bad eyes, but I got it, thanks Jeff.

2012 Black RG FLTRX
103" Stage II 255 Cams
Heavy Breather Intake
Fuel Moto 2-1-2 Headpipe
4" Dyno Tuned Mufflers
Power Vision

-- "Some people spend an entire lifetime wondering if they made a difference. The Marines don't have that problem."
Ronald Reagan



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post #4 of 7 (permalink) Old 03-22-2011, 10:17 AM
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All 3 styles of HD spark plug will work fine with your bike , The SE plugs will cost you more $$$. I use the SE high compression plugs with no problems .


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post #5 of 7 (permalink) Old 08-19-2011, 08:01 PM
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Try the Power Star spark plugs. I'm running them on my 103" and they are awsome. www.powerstarsparkplugs.com check em out.
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post #6 of 7 (permalink) Old 05-20-2012, 08:14 PM
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I remember a few years back folks talking about making sure that the spark plugs are indexed so the electrodes are in the proper position for maximum burning of the fuel. Do we need to concern ourselves with indexing our spark plugs?

Thanks in advance.

BG

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post #7 of 7 (permalink) Old 05-20-2012, 08:19 PM
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Quote:
Originally Posted by bikepsych View Post
I remember a few years back folks talking about making sure that the spark plugs are indexed so the electrodes are in the proper position for maximum burning of the fuel. Do we need to concern ourselves with indexing our spark plugs?

Thanks in advance.

BG
If youre running a race engine at the track that would be a good idea. If not then it wont make much of a difference.

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