What are the reasons why a moped won't start?

[Andy]

The reasons why a moped won't start include: 1. The moped's battery is low on power, causing it not to start. 2. The moped's starter motor is broken, making it impossible to start. 3. The moped has run out of fuel, causing it not to start, etc. When encountering the above issues, you can go to a moped repair shop to specifically check what the problem is. If you need to diagnose the root cause yourself, the operation methods are as follows: 1. Check if the starter motor is turning. If it's not turning, inspect whether the starter motor's circuit is open. 2. If the starter motor is turning but the moped won't start, it might be an engine issue. Check the seal between the cylinder block and cylinder head, the tightness of the valves, the wear of the piston rings or cylinder block, etc. 3. Check if the negative pressure rubber tube connected to the throttle is aged, cracked, or leaking, if the three-way fuel tank switch is damaged, if the carburetor fuel filter is clogged, if the fuel line is clear, or if the vacuum diaphragm is ruptured. 4. Also, check if the air filter is clogged or try removing the air filter and attempt to start the moped again.