Spark plugs?
Road Master
Joined: Jul 2007
Posts: 1,210
Likes: 0
From: Milwaukee, WI
RE: Spark plugs?
Stick with the factory plugs. Buy the gold or platinum if it makes you feel better to spend the extra cash. I just put in the HD platinums for $8 ea I think. Runs the same as it did with the stockers but I feel better
Different brand plugs aren't going to be any better and may throw a code and turn on the check engine light.
Different brand plugs aren't going to be any better and may throw a code and turn on the check engine light.
Road Warrior
Joined: Feb 2006
Posts: 1,281
Likes: 8
From:
RE: Spark plugs?
ORIGINAL: twincam47
Some people just don't get it do they Glide?
Gents....Ion Sense.....resisitance specific to H-D plugs and wires measured by the ECM, an 80 vdc secondary charge sent to the plugs to measure that resistance....if another brand plug or wire has a different resistance value that H-D.....the measurement will report back to the ECM differently. if you have driveability issues...try H-D plugs and wires.......this aint like the oil thing!
ORIGINAL: glide
Some of the platinum plugs will set a code in some of these bikes because of the ion sensing in the ignition system that senses secondary ignition resistance to retard timing when there is a ping detected.
ORIGINAL: rhinoevans
I have just put in Autolight 4164. Seems to be OK. The FIX MY HOG DVD says HD plugs only. Not sure why?
I have just put in Autolight 4164. Seems to be OK. The FIX MY HOG DVD says HD plugs only. Not sure why?
Some of the platinum plugs will set a code in some of these bikes because of the ion sensing in the ignition system that senses secondary ignition resistance to retard timing when there is a ping detected.
Gents....Ion Sense.....resisitance specific to H-D plugs and wires measured by the ECM, an 80 vdc secondary charge sent to the plugs to measure that resistance....if another brand plug or wire has a different resistance value that H-D.....the measurement will report back to the ECM differently. if you have driveability issues...try H-D plugs and wires.......this aint like the oil thing!
Cruiser
Joined: Oct 2007
Posts: 122
Likes: 0
From: lynn ma
RE: Spark plugs?
Hmmm,aluminum heads,razor sharp threads,I change mine every spring or 10,000 miles. HD or champion,I almost got caught up in that fancy spark plug thing,stock motor ,stock plug simply.thanks for the reminder I am gonnachange them today
Road Warrior
Joined: Dec 2006
Posts: 1,573
Likes: 138
From: StL, MO. USA
RE: Spark plugs?
I could be incorrect here - but isn't all of the spark plug debate a bunch of bullshit?
The ignition system is what generates the power for the spark - the plug (regardless of manufacturer) is going to give the same spark... As long as gap is properly set.
My take on it is this - all plugs must be built to a certain spec to meet whatever guidelines are in place for sparkplugs. Quality Control then becomes the determining factor... A $20 plug may have better quailty control when it's built - but does overall performance increase over a $4 plug? Prolly not. Now if you start changing ignition coils & such...that arguement could be changed...but I would still believe a $7.00 plug would do the job.
The ignition system is what generates the power for the spark - the plug (regardless of manufacturer) is going to give the same spark... As long as gap is properly set.
My take on it is this - all plugs must be built to a certain spec to meet whatever guidelines are in place for sparkplugs. Quality Control then becomes the determining factor... A $20 plug may have better quailty control when it's built - but does overall performance increase over a $4 plug? Prolly not. Now if you start changing ignition coils & such...that arguement could be changed...but I would still believe a $7.00 plug would do the job.
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