How to Bleed and Replace Brake Fluid on a 2020 Polaris Scrambler XP 1000 S
Shop parts for a 2020 Polaris Scrambler XP 1000 S ATV.
This MotoSport service guide walks you through safely replacing and bleeding the brake fluid on a 2020 Polaris Scrambler XP 1000 S (MMY: Polaris;SCRAMXP1000S;2020). Follow every step, use the correct fluid, and inspect hardware and lines while the system is open. If you’re unsure, stop and consult a certified technician.
Tools & supplies
- DOT 4 brake fluid (use Polaris-specified fluid; confirm in owner’s manual)
- Clear vinyl hose and catch bottle
- Brake bleeder wrench or correctly sized open wrench for bleeder valves (commonly 8mm)
- Turkey baster or fluid syringe to remove reservoir fluid
- Clean shop rags, degreaser, and isopropyl alcohol
- Towels or plastic to protect painted surfaces
- Hydraulic hand pump or vacuum bleeder (optional but speeds the job)
- Torque wrench for caliper and banjo bolts (if removing lines)
- Assistant for pedal/lever pumping if doing manual bleed
Safety & preparation
- Work on a level surface with the engine off and key removed.
- Elevate the ATV so wheels can spin freely and chock wheels to prevent movement.
- Protect paint and plastics from spilled fluid — DOT fluid will damage finishes.
- Wear gloves and safety glasses.
- Confirm whether your Scrambler has any brake system electronic features (ABS indicator) and note them before starting. If ABS is present, follow manual procedures for ABS-equipped systems or have a dealer service the system if uncertain.
Identify reservoirs & calipers
The Scrambler XP 1000 S uses a front brake master cylinder (handlebar) and a rear master/reservoir (foot brake). Each caliper has a bleeder valve. For bleeding order use the caliper farthest from the master cylinder first, then move to the next-farthest, finishing with the caliper closest to its master.
Step-by-step fluid replacement & bleed (recommended procedure)
- Clean the reservoir cap and surrounding area thoroughly to prevent contamination.
- Remove the reservoir cap and diaphragm; use a turkey baster or syringe to remove as much old fluid as possible from the reservoir.
- Top the reservoir with fresh DOT 4 fluid to the fill line. Keep the cap off but covered loosely to allow air escape during bleeding.
- Locate the caliper farthest from the master reservoir. Place clear hose on bleeder nipple and into a catch bottle partially filled with fluid to prevent air re-entry.
- Have an assistant slowly pull and hold the brake lever/pedal while you open the bleeder valve about a 1/4 turn. Old fluid and air will flow into the bottle. Close the bleeder while the lever/pedal is still held. Release lever/pedal. Repeat until clear, bubble-free fluid flows and no air is present. Always keep the reservoir topped between cycles to prevent sucking air into the master.
- Repeat bleeding on each caliper in order from farthest to nearest relative to each master cylinder (front master & its calipers; rear master & its caliper(s)).
- If using a vacuum bleeder or pressure bleeder, follow the tool manufacturer procedure while observing the same caliper sequence and reservoir level control.
- When the fluid is clear and bubbles are gone, tighten each bleeder to the proper snugness. If you removed any banjo bolts or fittings, torque to Polaris specifications or to a snug setting and re-torque to spec at first service.
- Top the reservoir to the correct level, reinstall the diaphragm and cap, and clean all spilled fluid with isopropyl alcohol.
- Pump the brake lever/pedal several times to build firm resistance. If the lever/pedal feels spongy, repeat bleeding until firm.
- Check for leaks around bleeder screws, calipers, hoses, and master cylinder. Re-check reservoir level after a short test ride and again after 24 hours.
Notes & checks specific to the 2020 Scrambler XP 1000 S
- Brake fluid type: Polaris recommends DOT 4 for many models in this family; always confirm with your owner’s manual or service manual for the Scrambler XP 1000 S before mixing fluids.
- Caliper configuration: inspect multi-piston calipers for even pad wear. Replace pads or hardware-mounted clips if worn or corroded.
- Brake line routing: the XP 1000 S has routed lines that can chafe against frame guards. Inspect the entire length for cracks, swelling, or abrasion and replace if any damage is present.
- ABS or traction electronics: if your machine is equipped with electronic brake aids, be cautious when cycling the system. If an ABS warning lamp appears after bleeding, consult a dealer for scan & reset as needed.
- Banjo bolt copper washers: if you remove the brake hose fittings, replace crush washers to prevent leaks.
- After any brake service, bed new pads properly: perform low-speed stops to seat pads without overheating rotors.
Troubleshooting
- Persistent spongy lever: repeat bleeding; check for air entry or a leaking master cylinder.
- Brake drag after bleeding: ensure bleeder is closed fully and caliper pistons retract; clean piston faces and lubricate slides per service manual.
- Fluid contamination or dark fluid: replace fluid and flush completely; contaminated fluid reduces performance.
Final checks before riding
- Firm lever and pedal feel at rest and during a low-speed test stop.
- No leaks and correct reservoir level after 5-10 test stops.
- Brake performance should be consistent and free of noise or grabbing; if not, re-inspect pads, rotors, and hydraulic components.
Perform a cautious test ride in a safe area to verify braking performance. Keep records of brake fluid changes and inspections as part of routine maintenance for your 2020 Polaris Scrambler XP 1000 S. For difficult or uncertain repairs, use MotoSport-approved professional service.
Related Shopping Categories
Shop Brake Fluid for a 2020 Polaris Scrambler XP 1000 S ATV.
Shop Brake Bleeders for a 2020 Polaris Scrambler XP 1000 S ATV.
Shop Brake Pads for a 2020 Polaris Scrambler XP 1000 S ATV.
Shop Brake Lines for a 2020 Polaris Scrambler XP 1000 S ATV.
Shop Brake Tools for a 2020 Polaris Scrambler XP 1000 S 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.