Spark plug ?
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
NGK Plugs
DCPR7E stock
DCPR8E one step colder
DCPR9E two steps colder
As I had said in my previous post, I run one step colder.
I always buy 4, and run the 2 that index the best.
I quit running Champions when the threads kept getting buggered up.
No problems with the NGK's.
I've heard bad stuff about the irridiums.
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
Considering how long a stock plug lasts, and how inexpensive they are, no need for me to invest in irridium.
As far as the colder plug thing, read up about "reading plugs" and you'll be able to tell if your current plugs are running too hot or not. If you are running higher compression, a colder plug can help avoid ping. They dissapate heat faster from the electrode.
Seasoned HDF Member
Joined: Oct 2006
Posts: 5,977
Likes: 85
From: Nevada
IMHO I wouldn't put a hotter plug in. No reason to unless something is wrong with the tune. I run one step colder on a fairly stock bike. Not sure if it buys me a thing, just a habit from my last hot rod bike. As Ed stated, the colder plugs dissipate heat better.
Tourer
Joined: Sep 2009
Posts: 309
Likes: 2
From: Tegucigalpa
hmm ok, I get it, thnx...
so in colder weather it is adviseable to use hot plugs and the contrary on hot weather, that's make sense... well... as I'm in the tropics, colder plugs don't sound necessary...thnx for clearing it
so in colder weather it is adviseable to use hot plugs and the contrary on hot weather, that's make sense... well... as I'm in the tropics, colder plugs don't sound necessary...thnx for clearing it
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