How to Bleed and Replace Brake Fluid on a 2024 Polaris Sportsman 570 EPS
Shop parts for a 2024 Polaris Sportsman 570 EPS ATV.
This MotoSport proprietary guide walks you through safe, effective brake fluid replacement and bleeding on the 2024 Polaris Sportsman 570 EPS. Follow every step carefully. If you're not comfortable working on brakes, have a certified technician perform the work.
What you need
- Factory service manual or owner's manual for torque & specifications
- Fresh DOT brake fluid as specified by Polaris (check owner's manual for DOT 3 or DOT 4)
- Clear tubing to fit bleeder nipples
- Catch bottle for old fluid
- Box wrench set sized for bleeder nipples
- Turkey baster or fluid syringe
- Clean rags and isopropyl alcohol
- Brake cleaner and a small wire brush
- Jack, stands or ramps and wheel chocks (if removing wheels)
- Optional: vacuum or pressure brake bleeder and nonmetallic funnel
- Protective gloves and eye protection
Safety & prep
- Work on a flat, stable surface. Chock wheels and engage park/kill as needed.
- Avoid spilling brake fluid on plastics, painted surfaces or boots — it damages finishes and rubber. Wipe spills immediately with isopropyl alcohol.
- Do not mix DOT types. Use the DOT spec indicated in the owner's manual.
- Keep contamination out of the master cylinder reservoir — cap must be opened only when ready to add fluid.
Model notes for the 2024 Sportsman 570 EPS
- The EPS model has electric power steering electronics nearby; do not soak connectors or sensor areas with fluid or cleaner.
- Master cylinder and reservoir are mounted centrally; identify the master reservoir location before starting so you can determine the bleeding order (farthest wheel first).
- This ATV typically has two front calipers and one rear caliper (single or dual caliper rear varies by config). Confirm your wheel/caliper layout before bleeding.
- If your Sportsman has any factory-installed brake proportioning or height-sensing components, note their mounting and avoid disturbing them unless instructed by service manual.
Bleeding strategy (basic principle)
Always start bleeding at the caliper farthest from the master cylinder, then move progressively to the nearest. For most Sportsman layouts: far front or rear first depending on reservoir position. If uncertain, identify master cylinder line routing and pick the farthest caliper by line length.
Step-by-step: flush & replace brake fluid
- Remove wheel(s) if needed for access and safely support the ATV.
- Clean the master cylinder cap area. Remove the cap and diaphragm; use a turkey baster or syringe to remove old fluid from the reservoir until level is low but not empty.
- Top reservoir with fresh DOT fluid to the recommended level. Keep cap loosely on to reduce contamination, but allow overflow while bleeding.
- Locate bleeder nipples on each caliper. Fit clear tubing over the nipple and route into a catch bottle partially filled with some fresh fluid to avoid drawing air back in.
- Begin with the farthest caliper. Have an assistant pump the brake lever/pedal several times and hold firm. With the lever held, open the bleeder nipple 1/4 to 1/2 turn to let fluid and bubbles flow. Close nipple before assistant releases the lever. Repeat until fluid runs clear with no bubbles.
- Keep reservoir topped up between cycles to prevent air entry. Continue this open-pump-close sequence until each caliper yields clear, bubble-free fluid.
- Proceed to the next-closest caliper and repeat the process until you finish at the caliper closest to the master cylinder.
- If using a vacuum or pressure bleeder, follow the tool directions — the bleeding order remains farthest to nearest. Pressure bleeders speed the job and often produce fewer iterations.
- After bleeding, tighten bleeder nipples to proper snugness. Wipe nipples and caliper areas dry, and inspect for leaks. Refill reservoir to full and reinstall cap and diaphragm.
- Operate the brake lever/pedal several times with the engine off to confirm firm pressure. If the lever is spongy, repeat bleeding cycles.
- Reinstall wheels, torque fasteners to factory specs, lower ATV, and perform a slow test ride to verify braking performance in a safe area.
Common problems & troubleshooting
- Persistent soft lever: likely remaining air in system or a leak. Recheck all hose fittings, banjo bolts and bleeder nipples for tightness and integrity.
- Brake pedal/lever goes to floor when held: check master cylinder for internal seal failure. Replacement or rebuild may be required.
- Contaminated brake pads: if fluid soaked pads or rotors occurred, replace pads and clean rotors per service manual procedures.
- Electrical concerns: if EPS warning lamps, avoid heavy steering loads during bleeding and recheck electrical connectors if connectors were disturbed.
Disposal
Collect used brake fluid and dispose of it at a hazardous waste facility. Do not pour down drains or onto the ground.
Final checks
- Confirm there are no leaks, bleeder nipples are tight, and reservoir cap is secure.
- Test brakes at low speed in a safe, controlled area before full operation.
- Record the service date and mileage for maintenance tracking.
For model-specific torque values, part numbers and diagrams, consult your 2024 Polaris Sportsman 570 EPS service manual or contact a MotoSport tech for assistance.
Related Shopping Categories
Shop Brake Fluid for a 2024 Polaris Sportsman 570 EPS ATV.
Shop Brake Bleeders for a 2024 Polaris Sportsman 570 EPS ATV.
Shop Brake Pads for a 2024 Polaris Sportsman 570 EPS ATV.
Shop Brake Lines for a 2024 Polaris Sportsman 570 EPS ATV.
Shop Brake Tools for a 2024 Polaris Sportsman 570 EPS 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.