My Ruifeng S4 will be maintained for the third time soon. Every time I go to the 4S shop, I have to clean the accelerator. What's the use of cleaning this up?

First of all, why clean the throttle? Because the throttle will be "dirty", affected by the EFI engine, the cylinder will inject oil first and then ignite every time it works. When the engine is turned off, the instantaneous ignition of the engine will be cut off immediately. However, the gasoline sprayed by this working cycle cannot be recovered and can only be attached to the throttle and the wall of the combustion chamber. Gasoline is easy to volatilize, but paraffin and gum in gasoline will stay. In the long run, these waxes and colloids will accumulate thicker and thicker, plus repeated heating. So, how often should the throttle be cleaned? Under normal circumstances, it is recommended that car owners clean the throttle every 20-40 thousand kilometers, but this is just a reference value for everyone. The specific cleaning cycle depends on personal car habits and the environment inside the car. For example, most of you drive on dusty roads, so the throttle will definitely be dirty, and it may be cleaned less than 20,000 kilometers.