Bleeding the Brakes on a 2008 Ducati Monster 696
Shop parts for a 2008 Ducati Monster 696 Motorcycle.What This Bleed Covers on the Monster 696
The 2008 Ducati Monster 696 uses hydraulic disc brakes at both ends, so the front lever and the rear pedal each operate a fluid-filled circuit. This guide treats the Monster 696 as a conventional, non-linked system: the front and rear circuits are separate, and each is bled on its own. If your particular bike has an ABS module, a standard bleed at the caliper bleeder can still be used to refresh fluid, but air that has entered the ABS unit itself—often after the reservoir ran dry or a line was disconnected—may require a dealer-level procedure or diagnostic tool. In that situation, stop and take the bike to a shop rather than trying to force the lever or pedal to firm up.
Bleeding is not only for a failed component. It is the routine job of replacing old fluid and purging air. Do it when the lever or pedal feels spongy, when the lever pulls closer to the grip than it used to, when the reservoir fluid looks dark or cloudy, or after any work that opened the hydraulic system, such as new lines, caliper service, or master cylinder work. Brake fluid absorbs moisture over time, which lowers its boiling point and can contribute to fade under hard use, so many riders refresh it on a regular schedule even when the brakes still feel normal.
Tools and Supplies to Stage Before You Start
- Fresh brake fluid of the type marked on the master cylinder reservoir cap, from a sealed container
- A box-end wrench that fits the bleeder valve
- A length of clear tubing that fits snugly over the bleeder
- A catch bottle for the old fluid
- Rags or shop towels
- A syringe or turkey baster for removing old fluid from the reservoir
- A screwdriver or driver that fits the reservoir cap screws
A one-way check-valve bleeder or a vacuum bleeder can make the job easier when you are working alone, but the basic lever-and-bleeder method works fine with a helper. Keep the catch bottle low and stable so the tubing stays clear of the bike’s painted surfaces.
Setting Up Safely and Protecting the Bike
Support the Monster 696 securely upright on a stand so it cannot tip while you are working. Turn the handlebars so the front reservoir sits level before you open it; a tilted reservoir can spill fluid as soon as the cap comes off. Cover painted surfaces, plastics, and the instrument area with rags, because most brake fluids damage paint and plastic on contact. Wipe up any spill immediately and rinse the area with water if fluid reaches a painted or plastic surface.
Work in a well-ventilated area and keep the fluid container closed when it is not being poured. Do not reuse fluid that has been sitting open or that has been pulled through the system; fresh fluid from a sealed container is the only fluid that belongs in the reservoir.
Preparing the Reservoir and Starting the Flush
Remove the reservoir cap and diaphragm, then use the syringe or turkey baster to pull most of the old fluid out of the reservoir. Do not let the reservoir run dry at any point in the job, because that is exactly how air gets drawn into the system. Refill with fresh fluid of the type marked on the reservoir cap, leaving enough room to see the fluid level as you work. Keep the cap and diaphragm clean and set them aside where they will not pick up grit.
Attach the clear tubing to the bleeder valve and route the other end into the catch bottle. Position the bottle so you can see the tubing and so the tube does not loop upward, where an air bubble could sit and mislead you.
The Bleeding Procedure, Step by Step
- Start with the front circuit. Make sure the front reservoir is filled to a safe working level and the cap is off so you can top it off during the bleed.
- Fit the box-end wrench over the front caliper bleeder and push the clear tubing onto the bleeder nipple. Keep the catch bottle below the caliper.
- Squeeze the front lever slowly and hold it against the grip. Do not release it yet.
- Open the bleeder about a quarter turn with the wrench. Fluid and air should move through the tubing into the catch bottle.
- Close the bleeder before you release the lever. Releasing the lever with the bleeder open can pull air back into the caliper.
- Release the lever, then repeat the squeeze-hold-open-close-release sequence. Check the reservoir after every few cycles and top it off with fresh fluid before it gets low.
- Continue until the fluid coming through the tubing is clean and free of bubbles, and the lever feels firm rather than spongy.
- If your bike has more than one front caliper, bleed each one in turn using the same sequence. As a general habit, start with the caliper farthest from its master cylinder, then move to the other.
- Move to the rear circuit. Keep the rear reservoir topped off, press and hold the rear pedal, open the rear bleeder about a quarter turn, close it before releasing the pedal, and repeat until the fluid runs clean and bubble-free.
- Finish one circuit completely before opening the other, and keep both reservoirs from running low enough to draw air.
Finishing, Leak Checks, and Test Ride
When the fluid runs clean at both ends, tighten each bleeder snugly without overtightening. Fill the reservoir to the correct level marking, reinstall the diaphragm and cap, and clean any spilled fluid from the calipers, lines, and reservoir area. Check for leaks at the bleeder valves and at the banjo fittings before you ride.
The lever and pedal should feel firm and consistent, not spongy, and they should not slowly sink under steady pressure. Spin each wheel to confirm the brakes are not dragging. Test the brakes at low speed in a safe area before riding normally, and recheck the fluid level and bleeder tightness after the first short ride.
When to Stop and Take It to a Shop
A lever or pedal that will not firm up after several bleeding attempts, a lever that firms up only after pumping, persistent air bubbles, or fluid leaking from the master cylinder or caliper are all signs to stop. If air may have entered an ABS unit, or if the bike has any system you are not confident bleeding correctly, have a shop handle it. Brakes are safety-critical, and a correct bleed is worth more than a rushed one.
Related Shopping Categories
Shop Brake Fluid for a 2008 Ducati Monster 696 Motorcycle.
Shop Brake Lines for a 2008 Ducati Monster 696 Motorcycle.
Shop Brake Pads for a 2008 Ducati Monster 696 Motorcycle.
Shop Stands for a 2008 Ducati Monster 696 Motorcycle.
Shop Brake Tools for a 2008 Ducati Monster 696 Motorcycle.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.
