How to Bleed and Replace Brake Fluid on a 2015 Can-Am Outlander 800R X MR
Shop parts for a 2015 Can-Am Outlander 800R X MR ATV.
This MotoSport-exclusive service guide walks you through safely flushing and bleeding the hydraulic brake system on a 2015 Can-Am Outlander 800R X MR (MMY). Follow these steps carefully, use proper safety gear, and keep the work area clean to avoid contamination. If you are not comfortable with brake systems, have a professional perform the service.
What you need
- DOT 4 brake fluid (new, unopened)
- Clear bleed tubing
- Brake bleeder wrench or appropriate size flare wrench
- Vacuum or pressure bleeder (optional but speeds the job)
- Clean funnel and clean rags
- Catch container for old fluid
- Latex or nitrile gloves and eye protection
- Jack or ramps and stands to raise wheels safely (if needed)
- Service manual for torque specs and bleed order reference
Model-specific notes for the 2015 Outlander 800R X MR
- The Outlander 800R X MR uses DOT 4 hydraulic brake fluid from the factory. Do not mix with DOT 5 silicone fluid.
- The master cylinder reservoir is mounted on the right-hand side of the handlebar area; it is small and low-capacity compared with road vehicles, so keep it topped during bleeding to avoid air entry.
- This model typically has separate front and rear calipers & a combined master circuit; bleed the entire system when replacing fluid to fully refresh hygroscopic DOT 4 fluid.
- Mud-focused X MR variants may have more contamination risk during field workclean reservoirs and caps before opening to avoid dirt ingress.
- If your Outlander is fitted with accessory skid plates or aftermarket guards, remove or access panels to reach bleed nipples and reservoir easily.
Safety and preparation
- Work on a level surface, engage park and use the parking brake or wheel chocks.
- Wear gloves and eye protection; brake fluid is corrosive to paint and skin.
- Clean the reservoir cap and surrounding area before opening.
- Inspect lines, hoses, and calipers for leaks or damage; replace any suspect components before bleeding.
Step-by-step fluid change and bleed
- Remove the reservoir cap and diaphragm. Siphon or soak out old fluid until reservoir is nearly empty but leave a small amount to keep the master cylinder wet during the initial steps.
- Top the reservoir with fresh DOT 4 fluid to the fill mark. Keep the cap loosely in place to minimize contamination while you work.
- Identify bleed nipple locations on each caliper. Clean them thoroughly.
- Follow the bleed order: start with the caliper farthest from the master cylinder and proceed to the nearest. On most Outlanders this means rear passenger, rear driver, front passenger, front driver. Confirm location relative to your master cylinder orientation before starting.
- Fit clear tubing onto the first bleed nipple and route the other end into a catch bottle partly filled with clean fluid to prevent air re-entry.
- Open the bleed nipple about a quarter turn. Have an assistant slowly squeeze and release the brake lever/pedal until no air bubbles appear in the tubing and the expelled fluid is clear of old-dark fluid. If using a vacuum or pressure bleeder, follow the tool instructions to draw fluid until clear.
- Close the bleed nipple while pressure is relieved (assistant stops compressing lever) to prevent sucking air back in. Repeat the process until fluid runs clear and bubble-free.
- After finishing each caliper, top the reservoir to the fill mark before moving to the next caliper. Never let the reservoir run dry during the procedure.
- When all calipers are done, perform a final bleed pass front to rear to ensure no trapped air remains.
- Tighten all bleed nipples to factory spec. If factory torque is not available, snug securely with the proper-sized wrenchdo not round the nipple.
- Clean any spilled fluid immediately. Reinstall reservoir cap and diaphragm, torque fasteners per the manual, and wipe surfaces dry.
- Pump the brake lever/pedal several times with the engine off to build firm pressure; the lever should feel firm and consistent. If it feels spongy, repeat bleeding until firm.
- Perform a slow, careful test ride in a safe area to verify brake function before riding at speed or in rough terrain.
Tips, troubleshooting & final checks
- If you see persistent air or a soft pedal after repeated bleeding, inspect master cylinder seals, banjo fittings, and hoses for internal collapse or leaksreplace as needed.
- Replace rubber hoses if they are cracked, bulged, or soft. Contaminated or collapsed hoses can draw air and ruin your bleeding efforts.
- Keep fluid containers sealed and dispose of used fluid at an approved recycling facility. Do not pour on the ground; DOT fluid is hygroscopic and environmentally harmful.
- After heavy mud use, recheck bleed nipples and reservoir seal integrity to prevent contamination and corrosion.
- Document the service date and mileage; DOT 4 is hygroscopic and should typically be changed every 1-2 years depending on use and exposure.
When to seek professional help
If you encounter internal master cylinder failure, persistent leaks, collapsed hoses, damaged calipers, or ABS/electronic brake faults, stop and have a qualified technician perform repairs. MotoSport recommends professional service for any non-mechanical or electronic brake issues.
Related Shopping Categories
Shop Brake Fluid for a 2015 Can-Am Outlander 800R X MR ATV.
Shop Brake Bleeders for a 2015 Can-Am Outlander 800R X MR ATV.
Shop Brake Pads for a 2015 Can-Am Outlander 800R X MR ATV.
Shop Brake Lines for a 2015 Can-Am Outlander 800R X MR ATV.
Shop Brake Tools for a 2015 Can-Am Outlander 800R X MR ATV.
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.