How is BYD F0 accelerator sinking?

The throttle is heavy because the throttle is dirty, which has nothing to do with adjustment. The solution is simple. Disassemble the joint between the air filter and the intake branch pipe, spray some carburetor cleaner in the throttle (hold the throttle pipe with your hand as the throttle, and then the valve in the throttle valve body will open, so that the area that can be cleaned will be smaller), and wipe it with a clean cloth, which will clean up some black dust.