This kind of fault performance is -- cold car easy to start, but hot car idling is unstable;And as long as the car driving up to 30 or so, basically do not feel the mixture is too thick, vomit that kind of feeling.It is only when the speed drops below 20 or 30 kilometers that the failure becomes particularly noticeable.
In this case, either the power supply of the electronic enrichment valve is cut off, and there is no power supply for the electronic enrichment valve;Either the plunger of the electronic enrichment valve is stuck in the open position in the seat.
Touch the body of the electronic thickening valve with your hand, the feeling is warm.This shows that there is no problem with the wire power supply part of the electronic enrichment valve.
The electronic enrichment valve together with the seat removed, found that the plunger of the electronic enrichment valve will be the electronic enrichment valve of the enrichment channel blocked about half, (and did not completely close the electronic enrichment valve of the enrichment channel).
Gently pry with a small word screw knife in a circle.Then clamp the lower half of the electronic thickening body with pliers and turn the upper part forcefully.As you turn the plunger of the electronic enrichment valve can be clearly seen to be extending out slowly.Adjust it to the point where the cold car closes the enrichment channel by about 1/3 (that is, close by 1/3 and open by 2/3).
Then install the electronically enriched valve body back to the seat and install the electronically enriched valve assembly onto the carburetor.