125 The mixing ratio screws of pedal mopeds are usually screwed to the end and then backed out for several turns.

Clockwise for thick, counterclockwise for thin. In general, the carburetor turns the mixture spiral clockwise to the end, and then exits for one and a half turns. There are five grooves on the large oil needle of the throttle valve. Screw the mixed gas screw to the bottom and exit one and a half turns, which refers to the adjustment method when the circlip is stuck in the middle. If the throttle needle is stuck in the above two slots, the exit distance should be reduced. For example, the accelerator oil needle is stuck in the second slot, and the mixed gas screw can be pushed out for a circle at most. On the other hand, if it is below, it is necessary to push out two laps in turn.