On top of carb is the idle screw and idle mixture screw (which probably has a limit cap fitted).
Remove the idle screw and under that is either a philips screw or a black plastic part.
That is the air bleed and pilot jet area.
You also need to remove the idle mixture screw.
To remove the cap (as if you pull at it, it will snap) you have to heat cap to soften glue and then pull cap off being careful not to break screw.
Remove these and clean with carb cleaner.
Now fit the mixture screw until finger tight.
Spray carb cleaner down small orifice that lines up with the mixture screw that are at choke plate end of carb.
Thats the idle circuit cleaned as spray should appear out idle transtion ports.
Turn mix screw out 1 1/2 turn. Fit cap.
Now clean down air bleed area.
Have the carb bowl off and main jet/emulsion tube out.
Clean and rebuild.
Good luck :thumbsup: