On the riding problem of Suzuki Youyi E 125(UE 125) carburetor

The mixture adjusting screw should be thin counterclockwise and thick clockwise! Under normal circumstances, the adjustment is to screw it to the end and then quit for about one and a half laps. Combined with the adjustment of the throttle adjusting screw, the idle speed will reach the specified speed!

Black smoke will be emitted when idling and accelerating, and the spark plug is black. Maybe the car is out of gas. Look at the snorkel on the crankcase of an engine to see if there is a big airflow recoil when the engine is working! If yes, check the tightness of piston, piston ring and cylinder, if not, check the wear of valve guide!

Of course, these data and tests must be completed by professional experts!

Carburetor You can buy a carburetor overhaul package of the same model, which contains a full set of carburetor wearing parts! Scooters can't use suzuki king carburetor!

I hope the above answers are helpful to you! !