Be sure to refuel after replacing the engine chain.

Does the subject want to ask, "What is the reason for constantly refueling after changing the engine chain?" The original car has too much carbon deposit, the electronic control system is poor, and the chain is not aligned.

1, throttle, idle motor, air intake and combustion chamber will cause engine flameout due to excessive carbon deposition. There are too many carbon deposits and dirt in the air inlet, and the cross-sectional area of the air passage changes, which makes the control unit unable to accurately control the idle air intake, resulting in the mixture being too rich or too lean and the engine unable to start.

2. The fuel constant pressure performance of the electronic control system is poor and the fuel pressure is low, which leads to poor atomization of fuel injection and difficult starting.

3. The chain is not aligned. Because the timing chain controls the crankshaft, camshaft, air intake and ignition system, if it is misaligned, the computer CPU cannot accurately provide the ignition time and fuel injection time. It will make the car difficult to start, shake and stall.