How to Bleed and Replace Brake Fluid on a 2021 Can-Am Outlander 850 DPS

Shop parts for a 2021 Can-Am Outlander 850 DPS ATV.

This MotoSport-exclusive procedure covers safe, correct brake fluid replacement and bleeding for the 2021 Can-Am Outlander 850 DPS (MMY OL850DPS). Follow factory service intervals and always refer to the service manual for torque specs and model-specific diagrams. Brake fluid maintenance preserves braking performance and prevents internal corrosion of master cylinders, calipers, lines and ABS components.

What you need

  • Brake fluid: DOT 4 (use fresh, unopened bottle; fluid is hygroscopic)
  • Clear tubing and clean catch bottle
  • Proper wrenches (open-end or flare nut), typically 8-11 mm depending on bleed nipple
  • Brake-bleeder pump or a helper for manual pumping
  • Clean rags, shop towels and latex or nitrile gloves
  • Torque wrench (for caliper bolts, master cylinder cap and banjo bolts; follow service manual)
  • Brake cleaner & small funnel
  • Small syringe or turkey baster (optional for removing old fluid from reservoirs)
  • Service manual for 2021 Can-Am Outlander 850 DPS

Safety precautions

  • Work on a level surface with the machine secure on stands so wheels hang free if bleeding wheels.
  • Wear eye protection and gloves. Brake fluid damages paint and plastics — protect painted surfaces with rags.
  • Do not mix DOT 3, DOT 4 and DOT 5 (silicone) fluids. Use DOT 4 only for this model unless service manual specifies otherwise.
  • Dispose of old fluid per local regulations. Do not reuse or return fluid to the bottle.

Model-specific notes for the 2021 Can-Am Outlander 850 DPS

  • The Outlander 850 DPS uses hydraulic disc brakes front and rear with separate master circuits; there are typically two separate reservoirs: one for the front brake at the right handlebar and one for the rear brake near the rear brake master cylinder by the foot pedal. Confirm reservoir locations visually on your unit before starting.
  • Dynamic Power Steering (DPS) models have a power steering system nearby — avoid contamination of the DPS reservoir with brake fluid and keep fluids separate.
  • If your unit is equipped with any electronic brake assist or ABS option, consult the service manual before bleeding; special procedures or scan tools may be required.
  • Inspect brake lines, hoses and caliper hardware for wear or leaks while servicing. Replace any brittle hoses or corroded fittings before reassembly.

Step-by-step: Fluid replacement and bleeding (recommended method)

  1. Preparation:
    • Park machine on level ground, engage parking brake and remove key. Secure ATV on stands so wheels rotate freely if possible.
    • Clean area around reservoirs. Remove master cylinder caps slowly to relieve any pressure; do not let dirt fall into reservoirs.
    • Use a syringe or turkey baster to remove as much old fluid from each reservoir as possible without contaminating the inside. Wipe reservoir clean with lint-free cloth.
    • Top reservoirs with fresh DOT 4 to the recommended level; do not overfill.
  2. Bleeding order:
    • General rule: start with the caliper furthest from the master cylinder. For most Outlanders this means: rear passenger-side caliper (if applicable), then rear driver-side, then front passenger-side, then front driver-side. If you have a single front master reservoir feeding both front calipers, follow the furthest-first rule for those lines.
    • If you are unsure which caliper is furthest, visually trace brake lines from the reservoir to the calipers.
  3. Two-person pump method:
    1. One person sits on the seat and gently pumps the brake lever/pedal several times and holds it firmly.
    2. Second person opens the bleed nipple on the target caliper with a wrench, allowing fluid and air to exit into the clear tubing. Close the nipple before the lever/pedal reaches the free position to avoid drawing air back in. Repeat pumping and opening until clear, bubble-free fluid exits.
    3. Top up the reservoir frequently; never let it drop below the minimum level during the process to avoid introducing air into the system.
    4. Once clear fluid flows, tighten the bleed nipple to specified torque and move to the next caliper in the sequence.
  4. Vacuum or pressure bleeder method (preferred for single operator):
    • Attach clear tubing to bleed nipple and the other end to your catch container. Attach vacuum pump or pressure bleeder per manufacturer's instructions.
    • Operate pump until clear, bubble-free fluid flows, then close the nipple and move to the next wheel. Maintain reservoir level throughout.
  5. Finishing up:
    • After bleeding all calipers, confirm lever and pedal feel is firm. If spongy, repeat bleeding or check for leaks.
    • Clean any spilled fluid immediately with brake cleaner and water; brake fluid will damage paint and plastics.
    • Torque all bleed screws, caliper mounting bolts and banjo bolts to factory specs from the service manual.
    • Reinstall and secure reservoir caps with new gaskets or seals if worn. Wipe down components and remove stands. Test brakes at low speed in a safe area before full operation.

Troubleshooting

  • Persistent spongy pedal after bleeding: check for internal master cylinder seal failure, collapsed hoses or air trapped in ABS module (if equipped). These require repair or specialized equipment.
  • Brake lever/pedal sinks slowly under steady pressure: likely master cylinder seal leak or internal leak in caliper piston — inspect and repair.
  • Brake fluid contamination with water or dark color: perform full system flush, replace hoses if saturated, and never use contaminated fluid.

Maintenance tips

  • Replace brake fluid every 1-2 years or per your service manual; DOT 4 absorbs moisture over time which lowers boiling point and reduces braking performance.
  • Keep an eye on brake pad wear and rotor condition when servicing brakes. Replace pads in pairs and resurface or replace rotors if scored or warped.
  • Store brake fluid sealed and upright; avoid storing bottles in open sunlight or extreme heat.

Follow these steps to keep your 2021 Can-Am Outlander 850 DPS braking system reliable and safe. For model-specific parts and recommended service items, visit MotoSport to find OEM and performance replacement options tailored to your Outlander.

Related Shopping Categories

Shop Brake Fluid for a 2021 Can-Am Outlander 850 DPS ATV.

Shop Brake Bleeders for a 2021 Can-Am Outlander 850 DPS ATV.

Shop Brake Pads for a 2021 Can-Am Outlander 850 DPS ATV.

Shop Brake Lines for a 2021 Can-Am Outlander 850 DPS ATV.

Shop Brake Tools for a 2021 Can-Am Outlander 850 DPS 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.