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Over the years I have tried all sorts of plugs in all sorts of motors... Split fires, platinum, so on and so forth ...
Never noticed anything out of any of the fancy plugs but my wallet getting slimmer... Did my 10k service this weekend and used regular NGK's from my local indy. Have used NGK's for years in all my 2 strokers and they work well. Reliable. Cheap. Autolites are just as good
@JarodB - As far as colder climate I would think you could run a 1 step hotter plug and save the extra cost of the Iridiums. Should do the same thing
Yes, but I run iridiums in all my vehicles and like them. If I was worried about the cost for 2 spark plugs for my bike I would not have bought a Harley. Chrome cost more why not make my motor run smoother with 2 plugs?
Originally Posted by ynots
The difference you noticed in the plugs more than likely isnt brand specific its probably because they have a different heat range
I know, that's just the brand I use. The OP asked for what we use and why.
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