There is no problem with the generator, but the main problem is that the battery is running out of power or nearing the end of its life. Like you said, if it can't start the fire, it's because the battery is bad. running out of power. If you can walk on it, that means the generator can produce electricity. After starting the motorcycle, the headlight still does not turn on, the turn signal is slightly bright and the horn makes a small noise. The output current is large at this time. The voltage drop is large, which is also consistent with the loss characteristics of the battery (so charging the battery at this time is a constant voltage charging method with large current. Only when the current decreases in the middle and at later stages of battery charging, the overall vehicle power will improve).
The car's generator can produce electricityricity as long as the engine is running. As long as there is electricity, it will charge the battery. When the battery is full, it will stop charging. As long as the battery power is not sufficient, there is no need to charge it when consumed, and there is no interruption or specified time. The generator will change the charging current depending on the battery power.
The electricity consumed each time the engine is started is enough to charge the generator for more than ten or twenty minutes. The electrical energy generated by the generator must first power all electrical equipment necessary for the operation of the engine, then. the remaining electric energy can be charged. Insert the battery If you drive at night with the lights on, the power consumption will be high and the charging time will be longer.