HD Performance Spark Plugs
RE: HD Performance Spark Plugs
all platinum plugs are pregapped and not to be adjusted. of course check to make sure they wernt dropped and the gap is .010 but other than that dont mess with em. anyone try the iridium plugs?
15 to 20 bucks a pop but you only need 2
15 to 20 bucks a pop but you only need 2
Banned
Joined: Aug 2006
Posts: 2,976
Likes: 1
From:
RE: HD Performance Spark Plugs
ORIGINAL: 2002fxdp
all platinum plugs are pregapped and not to be adjusted. of course check to make sure they wernt dropped and the gap is .010 but other than that dont mess with em. anyone try the iridium plugs?
15 to 20 bucks a pop but you only need 2
all platinum plugs are pregapped and not to be adjusted. of course check to make sure they wernt dropped and the gap is .010 but other than that dont mess with em. anyone try the iridium plugs?
15 to 20 bucks a pop but you only need 2
I think I was having a conflict with the check engine light coming on with them in.
DougJ
2nd Gear
Joined: Sep 2014
Posts: 6
Likes: 0
From: Ontario Canada
This statement is not correct... or at least it mis-leading.
"all platinum plugs are pregapped and not to be adjusted"
Plugs do come pre-gapped, but the same plugs can be used for many engines, and the required gap is not the same. Today I called NGK to ask why their Iridium plugs come with instructions that clearly say, "Do not gap these plugs". Their answer was, we've had customers that change the gap by putting pressure on the centre electrode, and these new electrodes crack or break with such pressure. The tip cracks off... gets damaged... doesn't work properly.
So, to prevent damage by those who do not know how to gap a plug correctly, NGK puts that message on their packaging.
This was the answer from both NGK USA and NGK Canada (I called both). NGK Canada, referred me to a link that describes the correct way to gap a plug. And, with no reservations, NGK Canada Tech Support advised that yes, indeed, all plugs should be gapped to the engine manufacture's specifications.
I have gapped my new NGK Iridium plugs to .40", as per my HD bike's spec.
I suggest that all do their own research, but wanted to share what I've learned today.
http://www.ngkplugpro.ca/content/con...sparkplugs.pdf
Cheers,
Randall
"all platinum plugs are pregapped and not to be adjusted"
Plugs do come pre-gapped, but the same plugs can be used for many engines, and the required gap is not the same. Today I called NGK to ask why their Iridium plugs come with instructions that clearly say, "Do not gap these plugs". Their answer was, we've had customers that change the gap by putting pressure on the centre electrode, and these new electrodes crack or break with such pressure. The tip cracks off... gets damaged... doesn't work properly.
So, to prevent damage by those who do not know how to gap a plug correctly, NGK puts that message on their packaging.
This was the answer from both NGK USA and NGK Canada (I called both). NGK Canada, referred me to a link that describes the correct way to gap a plug. And, with no reservations, NGK Canada Tech Support advised that yes, indeed, all plugs should be gapped to the engine manufacture's specifications.
I have gapped my new NGK Iridium plugs to .40", as per my HD bike's spec.
I suggest that all do their own research, but wanted to share what I've learned today.
http://www.ngkplugpro.ca/content/con...sparkplugs.pdf
Cheers,
Randall
Last edited by Rascally; Sep 9, 2014 at 12:08 PM. Reason: edited to add link to NGK PDF doc
Thread
Thread Starter
Forum
Replies
Last Post
