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Old 10-23-2008, 03:46 AM   #1 (permalink)
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spark plugs for 117

hi what are all the guys with 117 running for spark plugs ??
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Old 10-23-2008, 05:16 AM   #2 (permalink)
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We use NGK's here.
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Old 10-23-2008, 08:23 AM   #3 (permalink)
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B8es ?
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Old 10-23-2008, 08:40 AM   #4 (permalink)
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We use NGK's here.
Scott, have you ever had issues with them throwing codes on fuel injected bikes?
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Old 10-23-2008, 08:54 AM   #5 (permalink)
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Originally Posted by hdryder View Post
Scott, have you ever had issues with them throwing codes on fuel injected bikes?
I have installed well over a 100 sets of DCPR7E'S(3932) during regular services and never had a problem with one throwning a code or anything like that. Crappy wires(aftermarket) yes, but not ngk plugs...

For a 117, depending on the compression, i would recomend a DCPR8E(4339) gappped according to compression as well. I run mine on a tight .035
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Old 10-23-2008, 09:05 AM   #6 (permalink)
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hi what are all the guys with 117 running for spark plugs ??


HYPERFORMANCE and R&R CYCLES recommend AutoLite Plugs for the bigger inch motors...
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Old 10-23-2008, 10:35 AM   #7 (permalink)
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I just switched to the Denso Iridiums. Nice plugs! Not a large engine as yours, TC88. Possible of going to a 106 next year....
We'll see.
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Old 10-23-2008, 10:50 AM   #8 (permalink)
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I'm running a 10R12 gold V-Rod plug @ .040". It was a recommendation from a friend who tuned my bike. And yes it was tuned at a harley dealer. I felt it was too hot a plug for my application but he said I should have no problem with it. So far I haven't had any issues. What do you guys think ? I felt I shouldn't be past a BR8 plug. I still have a rattling issue with my bike after my 95" build that I cant resolve. The description of that problem can be found in earlier post by me....Could use some help on that also.
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Old 10-23-2008, 12:02 PM   #9 (permalink)
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B8es ?
Those work well.
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Old 10-23-2008, 12:02 PM   #10 (permalink)
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Scott, have you ever had issues with them throwing codes on fuel injected bikes?
We have not witnessed that here.
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Old 10-23-2008, 03:29 PM   #11 (permalink)
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I'm running Autolite 4265 plugs gapped to 0.039" in R&R cast heads...running fine!..
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Old 10-23-2008, 04:47 PM   #12 (permalink)
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Isn't the iridiums the ones that throw codes?
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