A bad battery in a motorcycle generally does not directly cause problems with fuel injectors. Fuel injectors are primarily responsible for delivering fuel to the engine's combustion chambers, while the battery's main role is to provide electrical power for starting the motorcycle and operating various electrical components.
Some motorcycles utilize electronic fuel injection (EFI) systems, which rely on the battery to power the fuel pump, sensors, and the engine control unit (ECU). If the battery's voltage drops significantly or the battery is failing, it can result in insufficient power supply to these components, causing erratic fuel delivery or even preventing the fuel injection system from operating correctly.
In such cases, a weak or dying battery may lead to symptoms that resemble fuel injection problems. These symptoms can include difficulty starting the motorcycle, rough idling, poor acceleration, or misfiring. It's important to note that these symptoms can also be caused by various other factors such as clogged injectors, fuel system issues, or faulty sensors.
If you suspect that your motorcycle's fuel injection system is experiencing problems, it is recommended to have it diagnosed by a qualified mechanic or a motorcycle technician. They will be able to accurately identify the root cause of the issue and determine if it is related to the battery or another component in the fuel injection system.