strange spark plug issue
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Intermediate
Joined: Sep 2014
Posts: 46
Likes: 28
From: Georgia
strange spark plug issue
I had a new one on me the other day -- pulled the plugs and found one had come loose - not that the plug was installed loose, but the electrode/guts were loose in the metal housing - you could spin the guts inside the plug... i have a short vid about it here:
Seasoned HDF Member
Joined: Jun 2017
Posts: 5,315
Likes: 4,272
From: Granville New York
definitely not stock hd plugs...they look like those e3 gimmick plugs. I'd throw them as far as i could. Good ol stock hd plugs work fine.
Grand HDF Member
Joined: Jun 2017
Posts: 4,685
Likes: 3,979
From: Near Yosemite
That was kinda my point....... In the video he says that they are Harley plugs, but I may have misinterpreted what he meant. Those are not HD plugs......
Seasoned HDF Member
Joined: Oct 2012
Posts: 11,226
Likes: 3,049
From: St.Louis Mo.
Never had a HD or Champion plug do that in all my miles ridden. Another reason not to buy boutique crap.
Plus that engine looks to be running way rich.
Plus that engine looks to be running way rich.
Last edited by hardheaded; Nov 20, 2022 at 01:27 PM.
Thread Starter
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Intermediate
Joined: Sep 2014
Posts: 46
Likes: 28
From: Georgia
I didn't mean to sound like I said HD plugs, just the plugs I found when I bought this Harley - and no telling how long those E3's were in there either...
previous owner hollowed out the mufflers and richened up the carb quite a lot... I need to check the jetting but PO also stripped the carb bowl Philip screw heads - so that's a bigger job than it coulda been (@#*) another job for the winter months...
previous owner hollowed out the mufflers and richened up the carb quite a lot... I need to check the jetting but PO also stripped the carb bowl Philip screw heads - so that's a bigger job than it coulda been (@#*) another job for the winter months...
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Seasoned HDF Member
Joined: Aug 2008
Posts: 5,072
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porcelin cracked. fortunate nothing dropped into the cylinder as it would be cut to smitherines!!
many causes from dropped plug to detonation
surprised it did not short to the shell
many causes from dropped plug to detonation
surprised it did not short to the shell
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Road Warrior
Joined: Mar 2013
Posts: 1,923
Likes: 587
From: Alorton, Illinois
I didn't mean to sound like I said HD plugs, just the plugs I found when I bought this Harley - and no telling how long those E3's were in there either...
previous owner hollowed out the mufflers and richened up the carb quite a lot... I need to check the jetting but PO also stripped the carb bowl Philip screw heads - so that's a bigger job than it coulda been (@#*) another job for the winter months...
previous owner hollowed out the mufflers and richened up the carb quite a lot... I need to check the jetting but PO also stripped the carb bowl Philip screw heads - so that's a bigger job than it coulda been (@#*) another job for the winter months...
Seasoned HDF Member
Joined: Oct 2019
Posts: 10,819
Likes: 7,454
From: OH
You either buy a JIS driver or grind the point off a US driver
Then replace with allen heads