How to Bleed and Replace Brake Fluid on a 2021 CFMOTO CFORCE 600 Touring
Shop parts for a 2021 CFMOTO CFORCE 600 Touring ATV.
This MotoSport guide walks you through a complete brake fluid change and bleed on the 2021 CFMOTO CFORCE 600 Touring, with model-specific notes you should know before starting. Read all steps fully, gather tools, and follow safety precautions.
What you need
- Brake fluid: DOT 4 (use fresh, unopened fluid only)
- Clear plastic tubing that fits bleed nipples snugly
- Catch bottle and clamp or vacuum pump capable of 1-2 psi vacuum
- Combination wrenches for bleed nipples (typically 8mm or 10mm)
- Phillips/flat screwdrivers to open reservoir & remove shrouds
- Clean rags, nitrile gloves, and safety glasses
- Turkey baster or syringe to remove old fluid from reservoir
- Jack or ramps and stands to lift the ATV safely
Model notes for the 2021 CFORCE 600 Touring
- The CFORCE 600 Touring uses hydraulic disc brakes with a single master cylinder for the front and a separate unit for the rear on many configurations. Verify which master cylinders your machine has by locating the fluid reservoirs on the handlebar area and near the rear brake pedal.
- Some Touring trims may have a combined front master that feeds both front calipers. Identify which calipers are served by which reservoir so you can choose the correct bleed sequence.
- If your ATV is equipped with ABS or an electronic brake module, follow manufacturer cautions: only use recommended procedures — ABS systems can trap fluid in lines and may require dealer tools or an ABS cycle procedure before reuse. If unsure, consult MotoSport technicians.
- CFMOTO plastic bodywork can scratch easily; protect fairings when using tools and catching spilled fluid. Brake fluid damages paint & plastics; clean any spills immediately with water.
Preparation
- Park on level ground, put the vehicle in park/neutral, and engage the parking brake where applicable.
- Securely lift and support the ATV so wheels are free to rotate for easier caliper access.
- Clean around the reservoir caps and bleed nipples to prevent contamination.
- Remove the reservoir cap and diaphragm; cover the opening with a clean shop towel to keep dust out while working.
- Inspect hoses & rubber lines for cracks or swelling; replace any suspect parts before bleeding.
Full fluid replacement — recommended sequence
Always replace the entire system fluid. The general rule: bleed the wheel farthest from its master cylinder first, then work toward the nearest. For most CFORCE 600 Touring layouts that means:
- Rear caliper first (if rear has its own master cylinder, bleed rear last relative to that master).
- Then the front calipers, starting with the caliper farthest from the front master cylinder.
Bleeding method A — Two-person pressure/standard pedal method
- Fill the master cylinder reservoir with DOT 4 fluid to the full mark. Keep the cap and diaphragm loosely in place to prevent contamination but allow pressure relief.
- Attach clear tubing to the bleed nipple of the caliper you are starting with. Place the other end into a catch bottle partially filled with used fluid to prevent air re-entry.
- Have an assistant pump the brake lever/pedal slowly 3-5 times and hold firm on the lever/pedal.
- Open the bleed nipple about 1/4 turn. Fluid & air will flow into the tubing. Close the nipple before the assistant releases the lever/pedal to avoid sucking air back in.
- Repeat the pump-hold-open-close cycle until you see clear, bubble-free fluid and no air in the tubing. Keep reservoir level topped off between cycles to avoid introducing air into the system.
- When clear fluid appears, tighten the bleed nipple to the specified snugness. Wipe area clean.
- Move to the next caliper in sequence and repeat until all calipers show clean fluid and no air.
Bleeding method B — One-person vacuum pump method
- Attach vacuum pump hose and clear tubing to the bleed nipple and set vacuum to light suction per pump instructions.
- Open the bleed nipple and draw fluid until clear, bubble-free fluid appears. Keep reservoir topped off.
- Close nipple before releasing vacuum. Repeat for each caliper in sequence.
Final steps
- With all calipers bled, top reservoir(s) to the correct level, install diaphragm & cap, and clean any fluid spills immediately.
- Carefully operate the brake lever/pedal repeatedly to confirm a firm, consistent feel. If the lever/pedal feels spongy, repeat bleeding cycle.
- Torque bleed nipple fittings to manufacturer spec if you removed them; otherwise snug to prevent leaks. Inspect for leaks with pressure applied to brakes.
- Lower ATV, perform a low-speed brake test in a safe area to bed the new fluid and confirm braking performance.
- Dispose of old brake fluid responsibly; do not pour it down drains or on the ground.
Troubleshooting & tips
- If persistent air remains, check for soft swollen hoses or leaking seals at the master cylinder or calipers — replace defective parts.
- Never reuse drained brake fluid. DOT 4 absorbs moisture; replace with fresh fluid only.
- A soft pedal after correct bleeding usually indicates mechanical issues (master cylinder internal leakage or caliper piston seals) and may require component replacement.
- Protect painted surfaces when working; brake fluid will damage paint & plastics.
Following this MotoSport procedure will restore brake hydraulic performance on your 2021 CFORCE 600 Touring. If you encounter ABS-related complications or internal master-cylinder failure, consider professional service to avoid safety risks.
Related Shopping Categories
Shop Brake Fluid for a 2021 CFMOTO CFORCE 600 Touring ATV.
Shop Brake Bleeders for a 2021 CFMOTO CFORCE 600 Touring ATV.
Shop Brake Pads for a 2021 CFMOTO CFORCE 600 Touring ATV.
Shop Brake Lines for a 2021 CFMOTO CFORCE 600 Touring ATV.
Shop Brake Tools for a 2021 CFMOTO CFORCE 600 Touring 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.