What are the symptoms of a broken carburetor?

Tempering sounds appear in two situations. One is that the air filter makes a "click" when starting, and white smoke comes out, making it difficult for the engine to start; The other is that the engine suddenly pops out of the air filter while working.

2. Knocking sound of carburetor throttle

The throttle keeps moving up and down in the mixing chamber, and excessive wear leads to excessive clearance. In the intake stroke of the engine, due to the impact of airflow, the throttle swings radially and hits the mixing chamber, which will make a "giggle" sound. This noise is almost inaudible when idling, and the noise is the largest when the throttle is turned to 1/4. When the throttle is turned on again, the noise gradually decreases, and when the throttle is turned to the bottom, the noise disappears.

Precautions:

(1) "Vehicle" refers to motor vehicles and non-motor vehicles.

(2) "Motor vehicle" refers to a wheeled vehicle that is driven or towed by a power plant and travels on the road for people to ride or transport articles and carry out special engineering operations.

(3) "Non-motor vehicles" refer to vehicles driven by human or animal power and running on roads, as well as disabled motorized wheelchairs, electric bicycles and other vehicles whose design maximum speed, no-load weight and overall dimensions meet the relevant national standards.