Why does the Magotan jerk when starting?

[Kent]

Car starting jitter and jerking reasons are as follows: Excessive carbon deposits: When there is too much carbon buildup on the throttle body, fuel injectors, or intake manifold, or when there is excessive carbon inside the engine, the gasoline sprayed by the cold start injector will be largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts, causing the engine to shake. Low cylinder pressure: After prolonged engine use, the gap between each cylinder liner and piston may become inconsistent. During cold starts, without proper oil lubrication, cylinders with larger gaps are prone to leaking a certain amount of high-temperature gas, thereby reducing power output, lowering oil and cylinder pressure, leading to insufficient power and causing the engine to shake. Faulty ignition coil: Once the ignition coil fails, such as cracking and leaking electricity, it will result in insufficient or lack of spark plug ignition capability. Consequently, the air-fuel mixture in that cylinder will not combust properly, leading to engine misfire, difficulty starting, and acceleration jitter.