ORIGINAL: trainer25
ok so the long needle on the left side (cockpit view) is the hsn, the horizontal screw on the right is the idle speed screw, so what is the 3rd screw for? believe it sits on top of the carb going down
Yes,
Yes and
The vertical screw on some versions is a idle stop screw that limits how far the barrel can be closed. This should be adjusted for RC so that the barrel is fully closed when the throttle arm is in the closed position.
John