How to Bleed & Replace Brake Fluid on a 2013 Suzuki King Quad 500AXi 4X4 POWER STEERING

Shop parts for a 2013 Suzuki King Quad 500AXi 4X4 POWER STEERING ATV.

This MotoSport-exclusive guide walks you through safely flushing and replacing the brake fluid on the 2013 Suzuki King Quad 500AXi 4X4 Power Steering (MMY code KINGQD500P). Follow steps exactly, use the correct fluid, and observe cautions unique to this model.

Notes specific to the 2013 King Quad 500AXi

  • The King Quad 500AXi uses hydraulic disc brakes front and rear; the power steering uses a separate hydraulic system. Never mix brake fluid with power steering fluid.
  • Suzuki recommends DOT 4 brake fluid for this model. Use fresh, unopened DOT 4 only; do not use DOT 3 unless specified by an up-to-date Suzuki manual.
  • Brake fluid is hygroscopic — it absorbs moisture. Replace if dark, contaminated, or if the system has air. Typical interval: every 2 years or when performance degrades.
  • Protect painted surfaces and rubber parts: brake fluid damages paint and some plastics. Clean spills immediately with water and mild detergent.
  • Locate the master cylinder reservoir under the front body cover/near handlebars. Familiarize yourself with reservoir location before starting.

Tools & supplies

  • Fresh DOT 4 brake fluid (one small bottle is usually enough)
  • Clear plastic tubing that fits snugly over each bleed nipple
  • Clean catch bottle with a one-way valve or a clampable squeeze bottle
  • Wrenches for bleed nipples (usually 8mm or 10mm) and reservoir cap
  • Brake cleaner, rags, disposable gloves, safety glasses
  • Torque wrench (for caliper/banjo bolts if removed) and service manual for torque specs
  • Bike lift or stands to safely support the ATV

Preparation

  1. Park on level ground, engage parking brake, kill engine, remove key.
  2. Securely support the ATV so wheels can rotate and calipers are accessible. Chock wheels.
  3. Clean the reservoir cap area to avoid contamination when opened. Remove reservoir cap and diaphragm carefully.
  4. Inspect brake lines, hoses, calipers and rotor condition. Replace any cracked hoses, leaking fittings, or damaged components before bleeding.
  5. Keep fresh brake fluid sealed and free of moisture during the job.

General bleeding strategy

Always start with the caliper farthest from the master cylinder and work toward the closest. For the King Quad 500AXi that pattern is typically: rear caliper first, then front calipers left/right depending on reservoir location. If uncertain, follow the hydraulic line routing from the master cylinder to identify farthest point.

Step-by-step bleed & fluid replacement

  1. Top off the master cylinder reservoir with fresh DOT 4 fluid to the specified level. Keep the cap off but diaphragm in place so you can watch the level.
  2. Attach clear tubing to the bleed nipple on the farthest caliper. Place the other end into a catch bottle partially filled with old brake fluid to prevent air re-entry. Ensure a snug fit.
  3. Have an assistant slowly depress the brake lever/pedal several times and hold it down. While held, open the bleed nipple about one-quarter turn to allow fluid and air to flow into the tubing. Close the nipple before the assistant releases the lever/pedal. Repeat until clear, bubble-free fluid emerges. Keep reservoir topped up so it never runs dry.
  4. Move to the next farthest caliper and repeat the pump/hold/open/close cycle until each caliper flows clear, bubble-free fluid. Maintain reservoir level throughout.
  5. When finished, tighten bleed nipples to proper snugness. Do not overtighten; check manual for torque if available. Wipe all fittings clean.
  6. Top the reservoir to the correct level, reinstall diaphragm and cap, and secure the bodywork.
  7. Operate the brake lever/pedal multiple times to confirm firm feel. If soft or spongy, repeat bleeding cycle until firm.
  8. Test-brake at low speed in a safe area to confirm braking performance before resuming regular use.

Flushing the entire system

If you intend to fully replace all fluid (flush), continue bleeding each caliper until fresh fluid from the master cylinder flows through and old fluid is completely expelled. Use a clean reservoir refill source and avoid topping off with partial-old fluid.

Common issues & troubleshooting

  • Persistent soft lever/pedal: air remains in system. Repeat bleeding, ensure reservoir never goes dry, check for leaking connections or damaged hoses.
  • Brake drag after bleeding: check caliper slide pins, pads, and rotor alignment; ensure bleed nipple fully closed and no debris entered caliper.
  • Fluid contamination or rusty parts: replace affected components and flush thoroughly.

Safety & disposal

  • Wear gloves & eye protection. Brake fluid is corrosive to paint and skin.
  • Dispose of used brake fluid per local hazardous-waste guidelines. Never pour on ground or into drains.
  • Do not mix brake fluid types. If DOT 3 or DOT 5.1 is substituted, verify compatibility with seals and Suzuki recommendations.

Final checks specific to your MMY King Quad 500AXi

  • Confirm power-steering reservoir was not disturbed; power-steering fluid is separate — do not top it with brake fluid.
  • After bleeding, inspect for leaks around the master cylinder, hose fittings and banjo bolts, especially after rough riding.
  • Record the service date and fluid type in your maintenance log. Regular inspection every season or 12 months is recommended for trail use.

If you encounter persistent problems or are uncomfortable performing any step, have a qualified ATV technician at MotoSport service centers inspect and perform the bleed to factory standards.

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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.