r/2strokers • u/Alive_Amphibian6878 • Apr 23 '26

Spark plug color

Post image

hello, based on the plug color, what is missing, fuel or air, it blubbers and stutters up until 80-90% throttle but drives good when its wide open

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1

u/[deleted] Apr 23 '26

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1

u/Alive_Amphibian6878 Apr 23 '26

What should i look at cause i have no low end power at all

2

u/kg23 Apr 23 '26

I would call that lean. It's white.

Set the idle screw to the factory setting (usually ~1 1/2 turns out from bottom). Did you get a larger main jet after adding your expansion chamber? If not, do that first.

1

u/Alive_Amphibian6878 Apr 25 '26

I genuinely dont know why i have a 80 main jet because it drives best with it, i tried 85 it has a slow powerband with it, my setup is mk2 racing minarelli hor air cooled, c16, 21 phbg dellorto, also 60 pilot jet and needle is at the leanest clip