How to Bleed and Replace Brake Fluid on a 2020 CFMOTO CFORCE 800 XC EPS

Shop parts for a 2020 CFMOTO CFORCE800XC ATV.

This MotoSport guide walks you through a safe, thorough brake-fluid replacement and bleeding procedure for your 2020 CFMOTO CFORCE 800 XC EPS. Follow these steps carefully & only perform work if you have the tools and confidence to do so. If unsure, consult a professional.

What you need

  • DOT 4 brake fluid (fresh, unopened)
  • Clear hose and catch bottle or a dedicated brake bleeder
  • Brake bleeder wrench or correct-size open wrench
  • Turkey baster or syringe (for reservoir fluid removal)
  • Shop rags, gloves, eye protection
  • Hydraulic hand vacuum pump or one-way bleeder kit (optional but recommended)
  • Small container for used fluid for proper disposal
  • Zip-ties or clamps to hold hose; marker to note hose routing

Model-specific notes for the 2020 CFORCE 800 XC

  • The CFORCE 800 XC uses separate master cylinders for front and rear brakes – a handlebar master for the front and a foot-operated master for the rear. Bleed and replace fluid on each system independently.
  • DOT 4 is recommended; confirm by checking the reservoir cap label before opening.
  • There is no vehicle-wide ABS system to complicate bleeding on this model, but each brake circuit must be fully bled and free of air for proper operation.
  • Brake hoses and fittings on this model are routed with clips; note routing and avoid stressing hoses when working.

Preparation

  • Work on a level surface with the engine off and key removed. Stabilize the ATV on a stand so wheels can rotate freely.
  • Clean around each master cylinder reservoir cap to prevent contamination.
  • Remove the reservoir cap diaphragm and cover plate. Keep the reservoir topped with fresh fluid during the procedure to avoid introducing air.
  • Wear gloves & eye protection; brake fluid damages paint & plastics.

Step-by-step — Replace fluid and bleed

1. Remove old fluid from reservoirs

  • Use a turkey baster or syringe to extract as much old fluid from each reservoir as possible. Do this first to remove most contaminants before pushing new fluid through the circuit.
  • Refill the reservoir with fresh DOT 4 to the recommended level. Keep the cap off during bleeding but cover with a clean cloth to limit contamination.

2. Identify bleed nipples and order

  • Front system: two calipers (left and right). Bleed the caliper farthest from the front master cylinder first, then the nearer caliper. If hoses run symmetrically, start with the caliper that has the longer hose or is opposite the master cylinder routing.
  • Rear system: single caliper – bleed directly at that caliper.

3. Bleeding method options

  • Two-person pump-and-hold method: One person pumps the brake lever/pedal to build pressure and holds while the other opens the bleed nipple briefly to let fluid/air escape, then closes it before release. Repeat until fluid is clear and free of bubbles.
  • Vacuum or pressure bleeder (preferred): Attach clear hose to bleed nipple and vacuum/pressure pump to draw fluid from caliper back to bottle or force fresh fluid from reservoir through caliper. This reduces the chance of introducing air.
  • One-way valve kits simplify one-person bleeding by preventing air backflow.

4. Bleeding procedure – front calipers

  • Attach clear hose to the bleed nipple and place other end in a container partially filled with brake fluid to prevent air re-entry.
  • Have an assistant slowly pull the front brake lever several times and hold. Crack the bleed nipple for a second to allow fluid to escape, then tighten before release. If using a vacuum/pressure bleeder, operate according to the tool's instructions.
  • Top up reservoir frequently. Continue until fluid flows clear and bubble-free from the bleed line.
  • Move to the next front caliper and repeat.

5. Bleeding procedure – rear caliper

  • Same process as front but use the rear brake pedal to apply pressure. Ensure the reservoir remains at the proper level throughout.
  • Repeat until flow is clear and no air bubbles appear.

6. Final checks

  • Tighten all bleed nipples to specified snugness (hand-tight plus a small fraction of a turn with wrench) – avoid over-torquing.
  • Refill reservoirs to the correct level and reinstall diaphragms and caps.
  • Pump each brake lever/pedal several times with the ATV off until you get a firm, consistent feel. If sponginess persists, repeat bleeding.
  • Clean any spilled fluid from the bike immediately; brake fluid will strip paint.

Post-service testing

  • With ATV on a stand, confirm brakes engage smoothly and that wheel rotation stops without noise or binding.
  • Perform a low-speed ride test in a safe area to verify braking performance under load. Recheck reservoir levels after the initial short ride and top off as needed.

Maintenance intervals & tips

  • MotoSport recommends replacing brake fluid every 12-24 months or sooner if contamination or moisture ingress is suspected.
  • Always use fresh, unopened DOT 4 fluid and avoid mixing fluid types.
  • Keep a log of brake service dates for future reference.
  • If you encounter persistent air, leaking fittings, damaged hoses, or caliper seals, replace the faulty component rather than repeatedly bleeding.

Safety & disposal

  • Dispose of used brake fluid in accordance with local hazardous-waste regulations; do not pour down drains.
  • If brake fluid contacts skin or eyes, rinse thoroughly and seek medical attention if irritation persists.

Following this MotoSport-specific procedure will restore brake performance on your 2020 CFMOTO CFORCE 800 XC EPS. If you prefer professional service or run into issues, contact a qualified ATV technician.

Related Shopping Categories

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Shop Brake Lines for a 2020 CFMOTO CFORCE800XC ATV.

Shop Brake Tools for a 2020 CFMOTO CFORCE800XC 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.