spark plug poll

[glider]

It's that with certain brand/type plugs you are more prone to pinging. Doesn't it make any sense to use what the manufacturer specked for the engine instead of something close?

 

[175mws]

I'm using the NKG Iridium plugs now I'm trying to remove heat from my motor. I used the for around 500 miles and have not seen any big change bike runs fine but still hot.

 

[glider]

Only a colder plug MAY remove a little heat but that's questionable too plus the life of the colder plug isn't as good as the regular plug. Plugs serve ONE purpose regardless of the brand/type and that is to light off the mixture. One spark is all it takes. The idea behind the fancy plugs is longevity, nothing more. Used in a car where the plugs may be barely accessible, that's one thing but for the price of the fancy plugs and any benefit that may be derived from them in a harley , they are a waste of money but if it makes you feel better with them, buy and use them.

 

[175mws]

Correct I did use a colded plug. but I did not see much change I paid 7 bucks each and it was time to change my stock set with 20k on them.

 

[glider]

I doubt you'll see any "change" until you get a few miles on them. THEN if you change back to a stock HD plug, there's where you see the difference. Been there done that!

 

[doj1975]

At how many miles should the plugs be changed?

 

[glider]

I usually go for plugs at 10K or once a season.

 

[doj1975]

Thanks Glider.

 

[03classic]

I use H-D but have used champion in a pinch

 

[walleye]

HD. There are plenty of things HD sells I won't use. (ie: Syn 3) but plugs are not one of them. I will stick with HD.