Terry Bell
Newbie
How can we tell lean or rich? look Spark Plug colors ? can't because two stroker only? 
LazyBastard
TY 4 Stroke God
Your sparkplug should be a gold/tan color. If its black and gooey, its too rich. If its white, its too lean.
vmaxjohn
Pro
What he said.
Also, don't try to read new plugs, they need some dirt and miles on them to show changes.
Also, also...if you look close at the ground (the tang that goes from the threads and sits over the center electrode) you will see what's called a carbon ring. Youd like this to stay close to the bend. If it's close to the end, it's rich, if it's past the bend, closer to the threads, you are lean. This is another way to read 4 strokes, as well as 2 strokes. Have fun!
Also, don't try to read new plugs, they need some dirt and miles on them to show changes.
Also, also...if you look close at the ground (the tang that goes from the threads and sits over the center electrode) you will see what's called a carbon ring. Youd like this to stay close to the bend. If it's close to the end, it's rich, if it's past the bend, closer to the threads, you are lean. This is another way to read 4 strokes, as well as 2 strokes. Have fun!
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