How to bleed and replace brake fluid on a 2019 Can-Am Outlander 850 X MR ATV

How to Bleed and Replace Brake Fluid on a 2019 Can-Am Outlander 850 X MR

Shop parts for a 2019 CAN_AM OL850XMR ATV.

This MotoSport-exclusive guide walks you through safely replacing brake fluid and bleeding the brake system on a 2019 Can-Am Outlander 850 X MR (MMY: CAN_AM;OL850XMR;2019). Follow these steps carefully to restore firm braking performance and prevent contamination of brake components. If your machine is equipped with ABS or electronic brake aids, follow the OEM service manual procedures for ABS systems or contact a dealerABS systems can require specialized bleed cycles.

What you need

• DOT 4 brake fluid (new, unopened container)
• Clear plastic tubing sized to fit bleed nipples
• Disposable catch bottle
• Brake bleeder wrench or appropriate open-end wrench
• Turkey baster or fluid transfer syringe (optional)
• Clean rags and nitrile gloves
• Floor jack or stands to lift and secure the ATV (if needed)
• Assistant (recommended for manual bleed) or vacuum/pressure bleeder

Precautions

• Brake fluid is corrosive to paint and plastics. Immediately wipe spills with a damp rag and flush with water if paint is contacted.
• Use only the specified DOT brake fluid type. Mixing different fluid chemistries can damage seals.
• If your ATV has ABS, do not use generic cycling procedures without confirming ABS-safe steps in the factory manual.
• Wear eye protection and gloves. Dispose of old fluid per local regulations.

Overview of the Outlander 850 X MR brake system (what MotoSport owners should know)

• The Outlander 850 X MR uses hydraulic disc brakes front and rear. Front master cylinder is on the right handlebar; rear master cylinder/reservoir and the pedal linkage are located near the rear brake pedal and under bodywork. Access panels or seat removal may be required to reach the rear reservoir on some configurations.
• Many 2019 X MR models are non-ABS, but check your unit for ABS components (sensors at the hubs, hydraulic control unit). ABS-equipped units can trap air in the modulator and might need dealer-level equipment.
• Brake lines on the X MR are routed close to racks and skid plates; inspect lines for chafing after reassembly and whenever you service brakes.

Step 1 Inspect & prepare

1. Park the ATV on level ground, set the parking brake, and kill the engine. Block wheels to prevent movement.
2. Clean the area around each brake reservoir cap to prevent contamination when opened.
3. Check the current fluid color and level. Old fluid is dark or brown; fresh fluid is clear to pale amber. Note the fluid type in the reservoir to confirm DOT 4 compatibility.

Step 2 Drain and replace master cylinder reservoirs

1. Start with the reservoir you can access easiest (usually front). Remove the cap and diaphragm carefully.
2. Use a turkey baster or fluid-transfer syringe to remove as much old fluid from the reservoir as possible without introducing air into the lines.
3. Top the reservoir with new DOT 4 fluid to the fill mark. Keep the cap loose between steps to allow displaced fluid to escape, but prevent debris from entering.

Step 3 Bleeding sequence (recommended)

Bleed in the sequence that allows the least distance for fluid to travel from reservoir to caliper: farthest caliper first, then nearer ones. For a typical Outlander layout, bleed rear caliper(s) first, then front calipers. If you are unsure, follow this order: passenger-side rear, driver-side rear (if dual rear), rear center or mid, then right front, then left front. Adjust order to your specific brake plumbing layout.

1. Attach clear tubing to the bleed nipple of the caliper to be bled and submerge the other end in a catch bottle partially filled with new fluid to prevent air reentry.
2. Have your assistant slowly pump the brake lever/pedal several times and hold it depressed (or use a vacuum/pressure bleeder per manufacturer instructions).
3. Open the bleed nipple about a quarter turn. Old fluid and air will flow into the tubing. Close the nipple before your assistant releases the lever/pedal.
4. Repeat pump/open/close cycles until the fluid exiting the tubing is clear and free of bubbles. Keep the reservoir top-up with fresh fluid between cycles to avoid drawing air into the system.
5. Move to the next caliper and repeat. Always monitor reservoir level; never let it run dry.

Step 4 Final reservoir fill and checks

• Once all calipers are bled and the fluid runs clear, fill each reservoir to the correct level and reinstall caps and diaphragms securely.
• Operate the brake lever and pedal several times to confirm a firm, consistent feel. If the lever is spongy, repeat bleeding until firm.
• Inspect bleed nipples for leaks and torque fittings to snugnessdo not overtighten. Wipe any spilled fluid and inspect paint and plastic for damage.
• Lower the ATV, remove wheel blocks, and perform a slow test ride in a safe area to confirm braking performance before normal use.

Troubleshooting & tips

• If you cannot achieve a firm lever after bleeding, check for a soft hose, leaking caliper seals, or a failing master cylinder; these require repair or replacement.
• Vacuum or pressure bleeders reduce the need for an assistant and make bleeding faster and cleaner. MotoSport recommends a quality bleeder for frequent maintenance.
• Replace brake fluid every 1-2 years or sooner if you ride in wet conditions. Fresh fluid improves boiling resistance and braking consistency.
• Label the date of service on the reservoir or maintenance log. Keep the unused DOT 4 container sealed and stored away from moisture.

MotoSport note on parts & service

Use OEM or high-quality aftermarket master cylinders, caliper rebuild kits, and DOT 4 fluid to maintain braking reliability on the Outlander 850 X MR. Inspect hoses, pads, and rotors while the system is open; replacing worn pads or corroded components during a fluid change saves repeat labor. If your machine has ABS, consult the factory service information or an authorized Can-Am technician before attempting bleeding procedures that may require ABS-specific steps.

Related Shopping Categories

Shop Brake Fluid for a 2019 CAN_AM OL850XMR ATV.

Shop Brake Bleeders for a 2019 CAN_AM OL850XMR ATV.

Shop Brake Pads for a 2019 CAN_AM OL850XMR ATV.

Shop Brake Lines for a 2019 CAN_AM OL850XMR ATV.

Shop Brake Tools for a 2019 CAN_AM OL850XMR 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.