My 125SM just recently started having some trouble idling. Not sure why. I was out riding this past Sunday with my youngest daughter, and it was running great. But when I can up to a stop sign it stalled. Started it back up easy enough, but it acted like the idle was just set too low. We rode home a bit later, pulled into my driveway, and it stalled again. So, I played with (what I think is) the idle adjustment. I turn it clockwise a little bit and that seemed to do the trick as it idled fine after that. Today, it's doing it again. I played with this carb screw again, but it doesn't seem to be having much affect. Is this the idle adjustment on the lefthand side of the carb or am I screwing with something entirely different?
The bike itself is still running like a champ and I'm not having any performance issues.