Does adjusting the pilot screw affect starting?

I had a heck of a time starting my CRF250R today. It was sitting for over a month. The last time it was runing, I was messing around with the pilot screw but not knowing what the hell I was doing.

Today, it took me an hour to start the beast. It started after I turn the pilot screw a little bit. Well, I got it to the point where I can kick start in one slow "push" of the kick starter.

Again, I have no idea what I was doing. I just turn one direction....test....then turn some more or do the reverse.

I think I just got lucky and got it to the right spot.

The real test will be when I start this when it's cold.

MY QUESTION IS:

Does the pilot screw that is under the carb affect starting the bike?

yes, turning it in(clockwise) leans the mixture, turning it out(counterclockwise) richens it up. Usually running a bit richer on the screw improves cold starts a long as the valves are in spec. Rule of thumb: the screw should be 1 1/2 to 2 turns out from lightly seated(turned in)

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