Float needle goes into the seat → float tang rests against needle pin → main jet screws into emulsion tube → pilot jet threads into the body near the choke side → mixture screw goes in the small tower (spring, washer, o-ring).
Small brass screws with tiny holes that atomize the fuel. These are the most common points of failure due to ethanol-related clogging.
. While specific diagrams are often tied to the equipment manufacturer—most commonly Briggs & Stratton
: The bottom "cup" held by a single nut. This is the first place you'll see dirt or slimy residue.
On most Ruixing carbs, the screw goes: . If you lose that o-ring, the engine will suck air and never idle right. Your diagram will show this clearly.
Leave a comment below with your exact Ruixing model number (usually stamped on the side of the carburetor, e.g., "PD24J-AB") and your engine CC, and we will help you add to this repack.