Starting a Harley-Davidson motorcycle without a battery can be a bit challenging because the battery powers the ignition system, which is necessary for starting the engine. However, there is a technique called "bump-starting" or "push-starting" that you can try. Here's how you can attempt to start a Harley-Davidson without a battery:
Ensure safety: Make sure you are in a safe and open area, away from traffic or any obstructions. You will need some space to gain momentum for the bump-start.
Put the motorcycle in gear: Shift the transmission into first gear. This is usually done by pressing the shifter down repeatedly until you feel it engage.
Gain momentum: Push the motorcycle to gain some speed. You may need the assistance of another person to help push or you can try running alongside the bike while pushing it.
Release the clutch: Once you have gained some momentum, hop on the motorcycle and get into a riding position. While maintaining a good amount of speed, release the clutch lever slowly and smoothly. Be prepared for a sudden jolt as the engine engages.
Engage the throttle: As you release the clutch, give a quick twist to the throttle to provide some gas to the engine. This will help the engine catch and start running.
Ignition and electrical systems: Even though you don't have a battery, the motorcycle's electrical and ignition systems will still require power to function. Once the engine is running, the alternator on the bike will start generating electricity, which will then power the electrical systems.
Please note that this method may not work in all cases, especially if there are additional issues with the motorcycle's ignition system or if it has a more complex electrical setup. It's always best to have a fully functional battery to ensure reliable and safe starting of your motorcycle. If you're experiencing issues with your battery or starting system, it's recommended to have a professional motorcycle mechanic inspect and address the problem.