A Cooler Spark Plug
Thread Starter
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Road Master
Joined: Jun 2007
Posts: 774
Likes: 21
From: Florida
A Cooler Spark Plug
Can anyone help me identify a cooler spark plug than stock HD 6R12's?
I don't have a problem going with Autolite, NGK, etc.
My Screamin' Eagle performance plugs make my bike misfire intermittently.
Thanks!
I don't have a problem going with Autolite, NGK, etc.
My Screamin' Eagle performance plugs make my bike misfire intermittently.
Thanks!
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
I've used the Autolite 4163, I guess the same plug that DTTJGlide uses, with no problems. The ion-discharge knock-sensing function of the ECM also works properly with these plugs and they cost about $1.50 each.
Thread Starter
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Road Master
Joined: Jun 2007
Posts: 774
Likes: 21
From: Florida
I'm gonna keep it simple. My dealer has dyno'd my bike three time trying to figure out my performance issue. I decided to return to stock plugs because I had nothing else to lose.
Prior to the final dyno during my break-in she ran great. It was after the tuner recommended I switch to Screamin Eagle plugs that the problem started.
BTW, the basic stock plug is too hot for the my high compression motor...especially in Florida :-)
Outstanding HDF Member
Joined: May 2011
Posts: 2,283
Likes: 4
From: nebraska
hey my 2008 FLHRC i bought recently apears to have V&H PIPES and a stage one aircleaner with K&N filtor. runs good just but an ocasional pop when i let off gas.
wonder if Autolite XS4163 plugsare ok for my bike ?
wonder if Autolite XS4163 plugsare ok for my bike ?
Thread Starter
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Road Master
Joined: Jun 2007
Posts: 774
Likes: 21
From: Florida
Is the Autolite 4163 a resistor plug? Is that the same as part no XS4163?
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Outstanding HDF Member
Joined: Jan 2010
Posts: 2,916
Likes: 31
From: earth
10R12s for VROD, 2 steps colder, been running them most of this season in a simple stage I 88" SG, but I can't say there is any improvement. Still noticed a little pinginging on the 100+F days. If compression is an issue tighten up the gap a little. I used the Autolites too, they work but the contact nipple isn't fixed like the HD plugs, it's the tread on type and it was loose everytime I checked it.
Last edited by fabrik8r; Aug 25, 2011 at 06:56 AM. Reason: wrong part number
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