What is the reason for the high fuel consumption of Ralink twin-engine hybrid?

The common reasons for the increase in fuel consumption of Rayling twin engines are: 1, and the throttle is too dirty: the throttle is too dirty, which leads to the increase in fuel consumption and needs to be cleaned regularly. Generally, the throttle is cleaned every 20,000 kilometers; Because the current vehicles use electronic throttles, you must do an idle learning after cleaning the throttle, otherwise the idle speed will become higher; 2. Too much carbon deposit in the intake port and cylinder: too much carbon deposit in the intake port and cylinder will also lead to an increase in fuel consumption, so it is also necessary to clean up the carbon deposit in the lower cylinder and intake port regularly, usually once every three years; 3. Spark plug aging: Spark plug aging will also increase fuel consumption, so the spark plug needs to be replaced regularly.