Plug wires and plugs changed - change to engine performance?
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From: Woodinville, WA
Plug wires and plugs changed - change to engine performance?
While I was overhauling my Softail I changed to SE plugs and plug wires. My bike's EFI (2001) and running high compression pistons. The plugs I took out were the standard 6R12s that a shop had put in (I'll never go back to that shop - but that's another story). Regardless the 6R12s had been doing their job as had the stock wires.
When I took the bike out it ran fine but I got the sense that the timing was a little different and at higher rpm the bike seemed to vibrate more than I remembered (now I admit I'd just been riding the Ultra Ltd for several weeks without riding the Softail - so it could just be the difference between the two) - I'm concerned that I may have inadvertantly changed the characteristics of the bike enough to throw off some tuning parameter and that I might be doing harm to the bike to run it this way over the long term. Thoughts?
When I took the bike out it ran fine but I got the sense that the timing was a little different and at higher rpm the bike seemed to vibrate more than I remembered (now I admit I'd just been riding the Ultra Ltd for several weeks without riding the Softail - so it could just be the difference between the two) - I'm concerned that I may have inadvertantly changed the characteristics of the bike enough to throw off some tuning parameter and that I might be doing harm to the bike to run it this way over the long term. Thoughts?
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From: ID Ho
SE wires are just like doing a set of Taylor or MSD wires on a small block, better insulation to you dont get spark wander and lower resistance , so no they wont change the way the bike runs.
As far as plugs go, go back to the 6R12's NEVER seen them cause a problem. Have seen EVERY other brand of plug out there cause problems that were cured by going BACK to 6R12's
As far as plugs go, go back to the 6R12's NEVER seen them cause a problem. Have seen EVERY other brand of plug out there cause problems that were cured by going BACK to 6R12's
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Outstanding HDF Member
Joined: Jul 2007
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From: Woodinville, WA
Thanks Hog-Doc. The plugs I put in are 32186-10 I think but since the 6R12s were working fine I'll switch back! Good advice as usual!!
(I'm running about 10.5:1 CR)
(I'm running about 10.5:1 CR)
Last edited by davessworks; Mar 4, 2010 at 03:56 PM.
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