How to Flush Abs Brake Fluid System On Harley Davidson

Brake fluid is an important part of ensuring safe and reliable braking on your Harley Davidson, and it’s important to flush the system every 3,000 miles or so to keep it performing optimally. This simple guide will show you how to do it!

Identification of the Brake Fluid System

The Harley Davidson brake fluid system is composed of two parts: the Reservoir and the Reservoir Cap. The Reservoir is a plastic or metal container that holds the brake fluid. The Reservoir Cap is a metal or plastic cap that fits over the Reservoir and seals it off from the outside world. When you need to flush your Harley Davidson brake fluid system, you first have to identify which part of the system you need to flush.

To flush the brake fluid system on a Harley Davidson motorcycle, you first have to remove the Reservoir Cap. To do this, you first have to unscrew it in either the front or rear wheel well. Once the Reservoir Cap is unscrewed, use a container large enough to hold all of the brake fluid (about 1 gallon) and pour it into the Reservoir. Make sure to keep track of how much brake fluid you use; you will need to add more when you are finished flushing the system. Replace the Reservoir Cap and screw it back into place. Drive your Harley Davidson motorcycle until it stops, at which point you know that the brake fluid system has been flushed properly.

Removal and Replacement of Brake Fluid System

If you’re having trouble with your Harley Davidson’s ABS system, it might be time to flush the fluid system. Here’s how to do it:

1) Park the bike off the ground. Make sure the parking brake is fully engaged.

2) Remove the rubber hose that connects the reservoir to the master cylinder. The reservoir should be located on the left side of the bike just below the handlebars. Use a wrench to unscrew the cap. Do not spill any fluid!

3) Pour about a quart of brake fluid into the reservoir. Don’t overfill it!

4) Screw the cap back on and reattach the rubber hose. Replace the motorcycle cover.

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If your bike doesn’t have ABS, you can still flush and replace the brake fluid system. Follow these steps:

1) Park your bike in neutral with the clutch in and apply your parking brake.
2) Remove both front wheel cotter pins and remove both front wheel bearings (see photo).
3) Disconnect both ABS hoses from their ABS connectors on each side of motorcycle (

Making the Change to Electronic Brakes

When it comes to safety, there is no compromise. That’s why Harley-Davidson has made the switch to electronic brakes, which provide a more reliable and safer ride. Here are four easy steps to flushing your brake fluid system:

1) Shut off the engine and remove the key from the ignition.
2) Remove the front wheel.
3) Open the bleed screw on each side of the reservoir (see illustration).
4) Raise and lower the pressure lever on each caliper to release fluid until all four reservoirs are empty. Be sure to replace any spilled fluid immediately!

Use of DOT brake fluid

When you replace your Harley Davidson DOT brake fluid, be sure to flush the system. This will help to remove any debris that may have built up over time and cause poor braking performance. To flush the system, use a quart of brake fluid and pour it into the reservoir.brake fluid reservoirs are typically on the front of the bike. Use a funnel to fill the reservoir until the fluid level is at the top mark. Do not overfill or you may overflow onto the brake pads and rotors. Close the cap and snap it into place. Ride your bike until the fluid has been flushed through the system and out the back.


I hope this article on how to flush and brake fluid system on Harley Davidson has been helpful. This is a common issue that can be avoided by following the proper steps. By following these simple instructions, you can keep your bike running smoothly and avoid expensive repairs down the road. Good luck!

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