Spark plugs
Road Captain
Joined: Jan 2009
Posts: 643
Likes: 0
From: Vancouver
They are the way to go, We have never had a problem with them and they are a performance plug. Every little bit helps. HD, Auto lite, OK, Seen more champion failures than I like. Personally would only use them as a boat anchor.
I'd like to take this opportunity to update my comments.
I run ANBS, and the SE touring slip-ons, tuned with the SEST, by myself using the stock plugs and all was fine, didn't think any more about it. This thread got me thinking so I did some data runs with the NGk iridium plugs in the bike now. The data runs showed that the knock sensors were active in some areas and showing a reading of 8. Now anything above 3 should be addressed by changing the tune. I put the stock plugs back in just to check what was happening. Another data run showed all was well again. NGKs went back in and another data run showed excess knock activity again. I have now gone back to stock plugs as it would appear they do have an effect on my bikes tune. Stupid thing is that although the system seems able to cope, the timeing is retarded when knock sensors are active removing as much as 8 degs of timeing.
The bike ran good on the NGK's but I suspect that this is more down to the systems ability to cope with the NGKs effect on the system. I dont notice any difference with the stock plugs so I will be sticking with them from now on.
I run ANBS, and the SE touring slip-ons, tuned with the SEST, by myself using the stock plugs and all was fine, didn't think any more about it. This thread got me thinking so I did some data runs with the NGk iridium plugs in the bike now. The data runs showed that the knock sensors were active in some areas and showing a reading of 8. Now anything above 3 should be addressed by changing the tune. I put the stock plugs back in just to check what was happening. Another data run showed all was well again. NGKs went back in and another data run showed excess knock activity again. I have now gone back to stock plugs as it would appear they do have an effect on my bikes tune. Stupid thing is that although the system seems able to cope, the timeing is retarded when knock sensors are active removing as much as 8 degs of timeing.
The bike ran good on the NGK's but I suspect that this is more down to the systems ability to cope with the NGKs effect on the system. I dont notice any difference with the stock plugs so I will be sticking with them from now on.
Last edited by WildBill2566; Aug 16, 2009 at 04:29 PM.
Road Warrior
Joined: Nov 2007
Posts: 1,984
Likes: 7
Interesting data. Facts a fact.
If you think how long it takes a piece of heat to go down that thin wire to a cooler place I'm not suprised.
Way, way back I seem to remember a class on heat transfer, something called "K" factor.
If you think how long it takes a piece of heat to go down that thin wire to a cooler place I'm not suprised.
Way, way back I seem to remember a class on heat transfer, something called "K" factor.
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