How to bleed and replace brake fluid on a 2015 Can-Am Outlander 800R

Shop parts for a 2015 Can-Am Outlander 800R ATV.

This MotoSport guide walks you through safely replacing and bleeding the brake fluid on a 2015 Can-Am Outlander 800R. It covers tools, fluids, model-specific locations and notes, bleeding sequences, and verification checks so your ATV brakes return to proper performance.

Important model notes for the 2015 Can-Am Outlander 800R

  • Brake fluid type: use DOT 4 only. Do not mix DOT types.
  • Master cylinder locations: front master cylinder is handlebar-mounted on the right; rear master cylinder and reservoir are located toward the rear under the seat/fender area. Confirm exact reservoir placement on your machine before starting.
  • ABS/Traction control: some 2015 Outlander 800R units may be equipped with ABS or stability systems. If your machine has ABS, follow manufacturer guidance for ABS system bleeding or use a scan tool/pressure bleeder that supports ABS cycling; symptoms of ABS require special attention.
  • Brake component materials: use caution around painted and plastic surfaces — brake fluid damages paint and plastics. Keep rags and a catch pan ready.
  • Recommended interval: brake fluid is hygroscopic. Replace every 12-24 months depending on use and moisture exposure.

Tools & supplies

  • DOT 4 brake fluid (fresh, unopened)
  • Brake bleeder kit: vacuum pump, pressure bleeder, or hand pump with hose & catch bottle
  • Clear vinyl hose that fits bleed nipples
  • Catch bottle and brake-clean-safe rags
  • Wrenches for bleed nipples (typically 8mm or 10mm) and master cylinder fasteners
  • Torque wrench for reassembly (recommended)
  • Jack or stand to lift and stabilize the ATV
  • Safety glasses, gloves

Preparation

  1. Park on level ground, set parking brake, shut off engine and remove key.
  2. Stabilize the machine on a stand so wheels can rotate freely. Chock wheels if leaving one wheel on the ground.
  3. Wear safety glasses and gloves. Protect paint and plastics with rags where fluid could drip.
  4. Clean master cylinder reservoir caps and surrounding area to prevent contamination entering the system.
  5. Open both front and rear reservoirs and inspect fluid color; dark or contaminated fluid indicates replacement is overdue.

General bleeding principles

  • Always keep the reservoir top filled during the process to prevent air entry.
  • Bleed the caliper furthest from the master cylinder first, then move to the nearest. For the front system that means the caliper farthest from the right-handlebar master. For rear, follow the same far-to-near rule relative to the rear master cylinder.
  • If using a pressure bleeder, follow device instructions while maintaining reservoir cap venting per the tool guidance.
  • If the ATV has ABS, cycle the ABS pump as required by procedure or use a bleeder that supports ABS to purge trapped air.

Step-by-step fluid replacement & bleed (recommended vacuum or pressure method)

  1. Remove old fluid: use syringe or turkey-baster to extract as much old fluid from the reservoir as possible. Dispose of fluid safely.
  2. Top reservoir with new DOT 4 brake fluid until full. Do not overfill.
  3. Identify bleeding order: farthest caliper first, then next farthest, finishing with the caliper closest to the master cylinder.
  4. Attach clear hose to the bleed nipple and place the other end in a catch bottle partially filled with new fluid to prevent air re-entry.
  5. If using a vacuum bleeder: attach the vacuum hose to the bleed nipple, open nipple a 1/4-1/2 turn and pull fluid until clear, bubble-free fluid flows. Close nipple before releasing vacuum. Keep reservoir topped off throughout.
  6. If using a pressure bleeder: pressurize reservoir per tool instructions, open bleed nipple until clear fluid with no bubbles appears, then close nipple. Repeat for each caliper in sequence.
  7. If using manual pedal or lever bleeding (two-person method): one person pumps the brake lever/pedal slowly to build pressure and holds; the second opens the bleed nipple to let fluid/air out, then closes nipple before lever/pedal is released. Repeat until no bubbles appear, keeping reservoir full at all times. Avoid sinking to the floor to prevent collapse of the master cylinder cup.
  8. Repeat bleeding passes: after initial pass front and rear, do a final pass starting with the farthest caliper again to ensure no trapped air remains.
  9. Top reservoirs to the proper level, secure diaphragms and caps, and clean all fittings and surfaces of spilled fluid.

After bleeding & verification

  • Check lever and pedal feel — they should be firm and not spongy. If spongy, repeat bleeding until firm.
  • Inspect banjo bolts, fittings and lines for leaks. Tighten to proper specifications if any seepage appears.
  • Operate wheel(s) by hand to ensure calipers are not dragging after bleeding. Spin wheels and apply brakes to check engagement/release.
  • Test ride slowly in a safe area to verify braking performance. Avoid high-speed or heavy-braking situations until you confirm system reliability.
  • Properly dispose of used brake fluid per local hazardous-waste rules.

Troubleshooting & tips

  • If you cannot get a firm lever after multiple bleed attempts, inspect master cylinder seals and caliper pistons for leaks or corrosion — these parts can introduce air or collapse under load.
  • When working near ABS, if bleeding does not clear air, an ABS module cycling or manufacturer-specific bleed routine may be required.
  • Keep replacement fluid in a sealed container and discard any fluid left in an opened bottle after extended time, as brake fluid absorbs moisture.
  • Replace reservoir diaphragm and cap if brittle or damaged to maintain a proper seal.
  • Document date and mileage of fluid change for your maintenance records.

Final safety reminder

Brake systems are critical. If you are uncertain at any point or suspect ABS/system problems, stop and consult a qualified technician. Proper bleeding and correct fluid choice are essential for safe operation.

Related Shopping Categories

Shop Brake Fluid for a 2015 Can-Am Outlander 800R ATV.

Shop Brake Bleeders for a 2015 Can-Am Outlander 800R ATV.

Shop Brake Pads for a 2015 Can-Am Outlander 800R ATV.

Shop Brake Lines for a 2015 Can-Am Outlander 800R ATV.

Shop Brake Tools for a 2015 Can-Am Outlander 800R 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.