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Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » Archive through April 14, 2017 » Replacements for 10R12X plugs? (probably covered before...) « Previous Next »

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Tempest766
Posted on Monday, March 27, 2017 - 09:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Since Harley dropped the XR1200 from their line the dealers in this area are not stocking the 10R12X plugs anymore, except the one dealer who was a Buell seller, and I don't do business with them.

There are 5 cross-reference plugs listed as:

Champion 1005
Champion RA4HCX
Denso IXU24
Denso VXU24
Denso XU24EPR-U

Are all these equivalent in performance and heat range, or are some cooler than others? Which are the most available? Any found at typical auto part stores?

Any of you used these non OEM plugs in your Uly? With what kind of results?

Any of you guys ever buy the long plugwire kits and clip to length for your Uly? The OEM plug wires are too short, IMHO.
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Mark_weiss
Posted on Monday, March 27, 2017 - 09:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've been using the EPR-U plugs for the last 40k miles. They seem fine.
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Tempest766
Posted on Monday, March 27, 2017 - 09:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

@Mark - Are they readily available over the counter?
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Arry
Posted on Monday, March 27, 2017 - 09:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Another option is the NGK Iridium DCPR8EIX 6546 . Order at any auto parts store. Supposed to be their "high performance, long life" plug. They are more expensive, maybe a waiste of money (?), but it's only two plugs...
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Ratbuell
Posted on Tuesday, March 28, 2017 - 09:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

...or just get Lance to send you some 10R12X's....support those who support us, and all that.
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Electraglider_1997
Posted on Tuesday, March 28, 2017 - 11:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Put the Harley V-Rod plug in my son's bike a couple of years ago and no problems. The 2009 V-Rod used the 10R12X plug.
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Teeps
Posted on Tuesday, March 28, 2017 - 12:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've been running NGK DPR9EIX-9 Iridium plugs in my '06 Ulysses since 2007.
Bought them from American Sport Bike.
They should be available at any motorcycle or auto parts store.
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Tempest766
Posted on Wednesday, March 29, 2017 - 10:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I got a couple of NGK DPR8E plugs at the autoparts store last night. hopefully they are in the right temp range for my region and the season. Next comes plug wires. Anyone have experience with those "make your own plugwire" kits where they give you one long wire and you cut to length, then crimp on the coil end caps?
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Mark_weiss
Posted on Wednesday, March 29, 2017 - 12:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I usually call ahead to be sure that they are in stock. I have an O'Reilley's and an Autozone within one mile of home. I don't find it to be a problem because I only change the plugs every couple of years. Even then, the old ones always seem to look fine. Clean, with nice, sharp, edges.

(Message edited by Mark_weiss on March 29, 2017)
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Ourdee
Posted on Thursday, March 30, 2017 - 10:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Magnacore wires,

https://jmautosports.com/magnecor/magnecor-kv85-co mpetition-85mm-plug-wires/2557/i-400790.aspx

I use the NGKs in the 9 range.
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Tempest766
Posted on Friday, March 31, 2017 - 07:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So which is hotter for the NGSs: 8 or 9? My understanding is that the plug needs to burn hot enough to keep it clean, but not too hot, lest ye risk pre-ignition or some other such apocalyptic event.
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Ourdee
Posted on Friday, March 31, 2017 - 09:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The higher the number the cooler the plug.
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Tempest766
Posted on Friday, March 31, 2017 - 11:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

@Ourdee - Thanks!
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Twisteduly
Posted on Monday, April 03, 2017 - 10:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Remember - that applies to NGK plugs (higher is colder)
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Hugie03flhr
Posted on Tuesday, April 04, 2017 - 04:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Tempest766
Posted
I got a couple of NGK DPR8E plugs at the autoparts store last night. hopefully they are in the right temp range for my region and the season. Next comes plug wires. Anyone have experience with those "make your own plugwire" kits where they give you one long wire and you cut to length, then crimp on the coil end caps?

Those plug wire kits work great for the perfect fit but I would strongly advise getting the special spark plug wire crimper for that nice secure crimp. You can do it with pliers but it never comes out as good. I use my crimper on my c3 corvette and anything that needs a spark plug wire made.
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Tempest766
Posted on Tuesday, April 04, 2017 - 09:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I replaced the plugs but didn't do the wires: NGKs (8 range) set at 0.037ish

Interestingly, with the old plugs the front cylinder was heavily sooted and the rear was cooked white. God, I hate air-cooled V-twins!

Regarding plug wires: There is so little wire used anyway. Most of the distance is taken up by the caps on either end. I did clean up the insides of the caps and put some fresh dialectric grease in there.
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Johnshore
Posted on Wednesday, April 05, 2017 - 04:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ordered a set of those wires ourdee posted above and I got this :
Manufacturer states no stock and no ETA. Order has been cancelled
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Ourdee
Posted on Wednesday, April 05, 2017 - 10:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Wow. Glad I got them in time. Truth be known, the OEM wires work.
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