Howe t7 can't refuel. Looking for an electrician or maintenance?

Haowo t7 cannot be refueled for maintenance. Hao t7 can't refuel and needs maintenance. Reasons and solutions for the failure of Huawo refueling door:

1, carbon deposition problem. Include cylinder carbon deposit, throttle carbon deposit, spark plug carbon deposit, intake carbon deposit, etc. When there is too much carbon in the engine, it will reduce the ignition energy of the car and the intake efficiency, which will eventually lead to the decline of engine power and the lack of idle speed. Clean up in time.

2. Fuel system. Adding an inappropriate fuel label will reduce the output power and power of the car. Or because the vent hole of the fuel tank cover is blocked, the fuel tank switch, fuel filter, and the oil pipe between the fuel tank and carburetor are partially blocked, which can not meet the required oil supply, resulting in too thin mixture and weak engine acceleration, and maintenance is carried out.