No, a motorcycle typically requires a functioning battery to stay running. The battery provides electrical power to the motorcycle's ignition system, fuel injection system (if equipped), lights, and other electrical components. Disconnecting the battery will usually result in the motorcycle's engine shutting off.
The battery serves as a source of electrical energy and also helps regulate the charging system. When the engine is running, the alternator or generator on the motorcycle charges the battery and supplies power to the electrical system. If the battery is disconnected or fails, the motorcycle's electrical system will not receive power, causing the engine to stall.
It's important to note that some older motorcycles with a magneto-based ignition system may continue running even if the battery is disconnected or dead. These systems generate their own electrical power, independent of the battery, for ignition. However, most modern motorcycles rely on a functioning battery for the electrical system to work correctly.