How to bleed & replace brake fluid on a 2014 Polaris Sportsman 570

Shop parts for a 2014 Polaris Sportsman 570 ATV.

This MotoSport-exclusive guide walks you step-by-step through replacing and bleeding the brake fluid on a 2014 Polaris Sportsman 570 (MMY Polaris;SPORTS570;2014). Follow these procedures for safe, reliable braking performance. Read each step before you start and work on one circuit at a time.

Special notes for the 2014 Sportsman 570

  • Factory-specified brake fluid: use DOT 4 brake fluid only. Do not mix DOT 3 & DOT 4 if manufacturer warns against it; for this model use fresh DOT 4 meeting FMVSS requirements.
  • The Sportsman 570 has separate front and rear master cylinder reservoirs. Identify which reservoir corresponds to the circuit you are servicing before opening anything.
  • There is no factory ABS on most 2014 Sportsman 570 models. If your unit is equipped with any aftermarket or dealer-installed systems, consult that system's bleed procedure.
  • Brake system components are sensitive to contamination. Use clean, sealed fluid bottles and do not let brake fluid contact painted surfaces – it will strip paint.

Tools & supplies

  • DOT 4 brake fluid (new, sealed container)
  • Clear plastic hose that fits snugly over the bleed nipple
  • Small catch bottle for old fluid
  • Wrench for bleed nipples (typically 8mm or 10mm depending on caliper)
  • Disposable gloves, safety glasses, rags
  • Brake cleaner
  • Turkey baster or fluid syringe (optional, for removing old fluid from reservoir)
  • Torque wrench (for caliper hardware if removed)
  • Jack or stands to position wheels safely if needed

Preparation

  1. Park the ATV on level ground, engage park brake if applicable, and remove the key. Work with the engine cold to avoid hot components.
  2. Clean the area around each master cylinder reservoir cap to prevent dirt from getting into the fluid. Remove the caps and inspect fluid color & level. Old fluid is dark or brown; clean fluid is clear to light amber.
  3. If fluid is very dirty, use a turkey baster to remove as much old fluid from the reservoir as possible, then top with fresh DOT 4 to the specified level. Keep reservoir openings sealed between steps.
  4. Identify bleed nipples on calipers & prepare clear hose and catch bottle. Fit the hose onto the nipple and place the other end submerged in a bit of fresh brake fluid in the bottle to avoid drawing air back into the line.

Bleeding methodology overview

Use either the manual two-person method, a one-person vacuum pump, or a pressure-bleeder. The sequence matters — always start with the caliper farthest from its master cylinder and finish with the closest. Keep the reservoir level above the minimum mark throughout the process to prevent air ingress.

Step-by-step bleed & fluid replacement

  1. Identify brake circuits: typically front circuit (front calipers) and rear circuit (rear caliper). Confirm which reservoir serves which circuit on your machine.
  2. Begin with the farthest caliper from the master cylinder. For each caliper in the circuit: attach clear hose to bleed nipple, open the nipple about a quarter turn.
  3. If two-person method: partner slowly depresses brake lever/pedal to the floor and holds; you open the bleed nipple to let fluid & air out until flow slows, then close the nipple; partner releases lever. Repeat until fluid runs clear of bubbles. Keep reservoir topped between cycles.
  4. If using a vacuum pump: connect pump to the bleed nipple, open nipple, pull fluid until clear, then close nipple before releasing vacuum. Repeat for each caliper.
  5. If using a pressure bleeder: pressurize master cylinder reservoir per tool instructions and open bleed nipple sequentially from farthest to nearest until clear fluid flows, then close nipple. Follow tool safety guidelines.
  6. After each caliper is clear, torque the bleed nipple to specification snugly but do not over-torque. Wipe any spilled fluid and inspect seals.
  7. Finish by bleeding the caliper nearest the master cylinder last. Verify pedal/lever firmness — it should feel firm, not spongy.
  8. Replace and tighten reservoir caps. Cycle brakes several times with ATV stationary to confirm firm operation before riding slowly to test braking under low-speed conditions.

Additional checks & maintenance after bleed

  • Inspect brake lines for cracks, chafing, or leaks. Replace any compromised hoses immediately.
  • Check caliper mounting bolts & pad wear. Replace pads if thickness is near minimum specification.
  • Confirm rotor condition – warped or heavily scored rotors should be resurfaced or replaced.
  • Dispose of used brake fluid per local hazardous-waste regulations. Do not pour into drains or on the ground.

Troubleshooting

  • Brake lever still soft after thorough bleeding: re-check for air in reservoir, loose fittings, collapsed hose, or internal master cylinder leaks. Replace faulty components as required.
  • Persistent bubbles during bleeding: ensure reservoir cap vent is functioning; cover or replace a blocked cap vent and keep fluid level high during bleeding.
  • Brake drag after bleeding: check caliper pistons for binding or stuck slides and clean or rebuild if necessary.

Torque & safety reminders

  • Tighten any caliper or brake-line fittings to factory torque where available. If you remove calipers, torque mounting bolts to Polaris specifications from your service manual.
  • Never ride until brakes are confirmed firm and the ATV stops reliably during a low-speed test ride.

Following this MotoSport-exclusive procedure will keep your 2014 Polaris Sportsman 570 braking system performing safely. If you encounter internal master-cylinder failure, severe caliper corrosion, or unpredictable brake behavior, have the system inspected by a qualified technician.

Related Shopping Categories

Shop Brake Fluid for a 2014 Polaris Sportsman 570 ATV.

Shop Brake Bleeders for a 2014 Polaris Sportsman 570 ATV.

Shop Brake Pads for a 2014 Polaris Sportsman 570 ATV.

Shop Brake Lines for a 2014 Polaris Sportsman 570 ATV.

Shop Brake Tools for a 2014 Polaris Sportsman 570 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.