What is the reason for auto-start jitter?

Too much carbon deposit. Generally, the phenomenon of vehicle body jitter at idle speed is due to carbon deposition in the engine, throttle and nozzle, which is the biggest reason for engine jitter. Carbon deposits adsorb gasoline, which will cause the concentration of mixed gas in the cylinder to rise and fall, especially during cold start. Pay attention to check the cleanliness of the throttle oil circuit on time.

In the oil supply system, unstable oil pressure causes unstable mixture concentration, leading to jitter and unstable idle speed. First, consider replacing the gasoline filter. After all, the filter element may be blocked after being used for a long time, and then check the oil pressure that does not pass through the gasoline filter. If it is not normal, it may be an oil pump problem.

Precautions for automatic start-up

Start at a low level. Generally, on a flat and solid road or site, an empty car should start at 1 or 2, and a heavy car or trailer should start at 1.

A smooth start. Release the clutch track shoe and start to accelerate. When the engine sound drops and the car body shakes slightly, release the parking brake lever, stop the clutch pedal at this place for a while, and slowly press the accelerator pedal to make the car start smoothly.