That normally means the pilot jet is a little lean (cold starting issue) and your main jet is fat (black plug).
Quote:
Originally Posted by vividpixel
I don't want to derail someone's thread with my non-issue, just figured it's a valid out of the box comparison (TT250 on stock carb vs TemplarX on stock carb). The spark plug was very sooty black in the Templar which everything I've read indicates too rich, so that's interesting that it could be the opposite, but it's not enough of an annoyance for me to worry about. The TT250 spark plug is less-dark-black with a hint of light gray, so I'm actually surprised TT250 is the one not needing choke.
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