How to bleed and replace brake fluid on a 2015 Can-Am Outlander 650 XT
Shop parts for a 2015 Can-Am Outlander 650 XT ATV.
This MotoSport guide covers a safe, step-by-step procedure to replace and bleed the brake fluid on a 2015 Can-Am Outlander 650 XT. It is written for owners who have basic mechanical skill, a clean workspace, and the correct tools. Follow safety precautions closely & consult your owner's manual for vehicle-specific warnings.
Important notes about the 2015 Can-Am Outlander 650 XT
- The Outlander 650 XT uses hydraulic disc brakes front and rear. Use only manufacturer-recommended DOT-type brake fluid (DOT 4 is the typical specification for this model); never mix DOT 3, DOT 4 & DOT 5 silicone in the same system.
- Some model-year ATVs may have ABS or electronic systems; if your machine is equipped with ABS, follow ABS-specific bleed procedures or consult a dealer. ABS components are sensitive to air in the system and may require a diagnostic/bleed tool for full evacuation.
- Brake reservoirs are exposed to the elements on ATVs. Keep caps and reservoirs clean before opening to avoid contamination. Wear nitrile gloves & protect painted surfaces from fluid spills – brake fluid can damage paint and plastics.
- If you replace the master cylinder or any steel lines, bench-bleed the master cylinder and inspect lines & fittings for corrosion or damage before reassembly.
Tools & supplies
- DOT 4 brake fluid (fresh, unopened container)
- Clear plastic tubing that fits over bleed nipples
- Catch bottle or reservoir for old fluid
- Wrenches for bleed nipple fittings (open-end or flare nut, correct size)
- Brake bleeder or vacuum pump (optional but speeds work)
- Clean rags, brake cleaner, nitrile gloves, safety glasses
- Torque wrench (for reassembly to manufacturer spec)
- Jack or stand to lift the ATV safely so wheels can rotate (if needed)
Preparation
- Park on a level surface, engage park brake, remove key, and disconnect battery negative if you will be working near electrical components or ABS connectors.
- Clean the brake reservoir caps thoroughly before opening. Remove any dirt or debris from around the cap to prevent contamination entering the system.
- Position absorbent rags and a drip tray under calipers to catch spills. Have fresh fluid ready & do not reuse old fluid.
Procedure overview
Bleed the system by replacing fluid from the reservoir down to the calipers, removing air at the bleed nipples. The correct sequence: bleed the caliper farthest from the associated master cylinder first, then work toward the nearest. For handlebar-operated front brakes versus foot-operated rear brake, bleed each circuit separately.
Step-by-step: Replacing brake fluid
- Open the reservoir cap(s) and remove the diaphragm or rubber insert. Keep contaminants out while working.
- Siphon or carefully suck out most of the old fluid from the reservoir with a syringe or turkey-baster until level is low but not empty. Do not allow the reservoir to go dry during bleeding or introduce air into the master cylinder.
- Refill reservoir with fresh DOT 4 brake fluid to the specified level.
- Start with the caliper farthest from the master cylinder. Fit clear tubing over the bleed nipple and submerge the other end in a catch bottle partially filled with clean fresh fluid to prevent air re-entry.
- Have an assistant slowly apply the brake lever or pedal several times and then hold pressure. Open the bleed nipple about 1/4 turn; fluid & air will flow into the tube. Close the nipple before the assistant releases the lever/pedal. Repeat until no air bubbles appear in the tube and the fluid runs clear.
- Keep the reservoir topped up during the entire process to prevent drawing air into the master cylinder.
- Proceed to the next-farthest caliper and repeat the same steps. Finish with the caliper nearest the master cylinder.
- If bleeding a separate rear circuit, repeat the sequence for that circuit independently (rear master to rear calipers). Follow the same farthest-to-nearest rule for that circuit.
- After bleeding, tighten bleed nipples securely per manufacturer torque or snugly if spec unavailable. Wipe all connections clean and check for leaks with light pressure applied to the brake lever/pedal.
- Reinstall reservoir diaphragm & cap. Dispose of old brake fluid properly — it is hazardous waste.
Alternative methods
- Vacuum bleeder: Attach vacuum tool to bleed nipple, open nipple, and pull fluid until clear. Maintain reservoir level while drawing fluid.
- Pressure bleeder: Pressurize the reservoir per tool instructions and open bleed screws one at a time to force fluid through. Useful for single-operator bleeding and ABS-equipped units when used with ABS service mode.
- Bench-bleeding new master cylinder: If replacing the master cylinder, bench-bleed it before installation using fittings and tubing to remove trapped air.
Checks after bleeding
- Confirm firm lever/pedal feel under normal brake pressure. If spongy feel remains, repeat bleeding until air is fully removed.
- Inspect lines, fittings, caliper pistons, and master cylinder for leaks or damage. Address any leaks before riding.
- Take a short low-speed test ride in a safe area to confirm braking performance. Recheck fluid level and fittings after the first ride.
Common issues & tips
- Persistent soft lever/pedal can indicate internal master cylinder seals, caliper piston corrosion, or trapped air in ABS modulator — professional diagnostics may be required.
- If a caliper piston does not retract properly, inspect for seized pistons or contaminated pads; clean and service as needed.
- Always use fresh, sealed brake fluid. Store containers tightly closed to prevent moisture absorption – brake fluid is hygroscopic.
- Label and keep brake fluid away from children & pets. Clean any fluid spills immediately to protect paint and plastics.
Properly replacing and bleeding brake fluid restores braking performance and extends component life. If you encounter ABS-specific warnings, unexpected brake system behavior, or are unsure about any step, contact a certified technician or a MotoSport specialist for help.
Related Shopping Categories
Shop Brake Fluid for a 2015 Can-Am Outlander 650 XT ATV.
Shop Brake Bleeders for a 2015 Can-Am Outlander 650 XT ATV.
Shop Brake Pads for a 2015 Can-Am Outlander 650 XT ATV.
Shop Brake Lines for a 2015 Can-Am Outlander 650 XT ATV.
Shop Brake Tools for a 2015 Can-Am Outlander 650 XT 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.