When the Ralink twin engines are fully charged, the engine is still idling.

Check the ignition and fuel system, or clean the intake system.

After driving for a certain mileage, the engine will idle too fast if the throttle is too dirty or too much carbon is deposited in the nozzle, so it should be cleaned in time.

It is normal for a vehicle to shake slightly when driving at a low speed. Half-stepping on the clutch can be improved. If the jitter is severe, it is recommended to go to a 4S shop for maintenance.