To determine whether a Harley-Davidson motorcycle is equipped with fuel injection or not, you can look for the following indicators:
Model Year: Harley-Davidson introduced electronic fuel injection (EFI) to their motorcycles gradually, with different models transitioning at different times. Typically, motorcycles manufactured after the early 2000s are more likely to have fuel injection.
Badging or Labels: Look for any badges or labels on the motorcycle that indicate the presence of fuel injection. Harley-Davidson may use terms like "Electronic Fuel Injection," "EFI," "Delphi Fuel Injection," or other similar designations on the bike itself.
Throttle Body: Inspect the throttle body assembly. Fuel-injected Harley-Davidson motorcycles will have a throttle body connected to the intake manifold. It will have fuel injectors visible inside or on top of the throttle body, along with various sensors and wiring harnesses.
Carburetor Absence: Carburetors are not present on fuel-injected Harley-Davidson motorcycles. If you don't see a carburetor on the engine, it suggests the presence of fuel injection.
Owner's Manual or Documentation: Refer to the motorcycle's owner's manual or any available documentation. It should provide information about the fuel system and specify whether the bike is equipped with fuel injection or carburetion.
If you're unsure about a specific model or year, contacting a Harley-Davidson dealer or referencing the official Harley-Davidson website can provide accurate and detailed information regarding the presence of fuel injection in a particular motorcycle model.