How to Bleed and Replace Brake Fluid on a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING

Shop parts for a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.

Overview & safety

This MotoSport guide covers draining, replacing, and bleeding the brake system on the 2010 Suzuki King Quad 750AXi 4X4 Power Steering. Work on level ground, wear eye protection and nitrile gloves, and keep brake fluid off paint & rubber. Brake fluid is hygroscopic and corrosive — dispose of used fluid responsibly.

What you need

  • DOT 4 brake fluid (Suzuki recommends DOT 4)
  • Clear tubing that fits bleeder nipples
  • Catch bottle
  • Wrench set (bleeder nipple size commonly 8 mm or 10 mm; verify before starting)
  • Screwdriver or pliers for reservoir caps/clips
  • Shop rags, brake cleaner
  • Optional: vacuum or pressure bleeder, helper

Model notes specific to the 2010 King Quad 750AXi

  • The 750AXi features separate front and rear brake circuits with a hydraulic hand lever/front and foot rear master cylinder configuration on many units; check your bike to confirm location. Bleed each circuit separately.
  • Power steering is independent of the brake system, but the steering pump reservoir and hoses sit near the frame. Avoid spilling brake fluid on power steering components or painted surfaces.
  • There is no factory ABS on this model; bleeding is standard hydraulic bleeding rather than ABS cycling.
  • If your machine has a proportioning or combination valve, do not disassemble it without a service manual — bleed at calipers/wheel cylinders and master cylinder only.

Step-by-step: Replace brake fluid and bleed brakes

1. Inspect & prepare

  • Park level, secure machine in neutral with parking brake off (so calipers are relaxed) and remove wheels or raise the machine for access if needed.
  • Locate master cylinder reservoirs: front (handlebar) and rear (foot). Clean around caps to prevent contamination, then remove caps and diaphragms.
  • Note fluid color — dark fluid indicates replacement needed.

2. Drain old fluid from reservoirs

  • Siphon or use a turkey-baster to remove as much old fluid from each reservoir as possible without introducing air into lines.
  • Wipe reservoirs clean and refill with fresh DOT 4 fluid to the max mark before beginning the bleed.

3. Bleed sequence principle

Always begin bleeding at the caliper/wheel furthest from the master cylinder and finish at the closest. For many King Quads that means: right rear, left rear, right front, left front for a single master serving all wheels. If front and rear have separate masters, bleed the circuit for the front master independently (furthest wheel first), then bleed the rear circuit separately.

4. Open bleeder & pump method (helper)

  • Fit clear tubing over the bleeder nipple and place the other end into a catch bottle partially filled with old fluid (prevents air re-entry).
  • Have a helper slowly squeeze the brake lever or press the pedal several times and hold it.
  • Open the bleeder nipple 1/4 turn with the wrench to let fluid/air escape. Close the nipple before the helper releases the lever/pedal. Repeat until clear fluid with no bubbles runs out.
  • Keep reservoir topped up during the process; never let it run dry.
  • Repeat for each wheel in the correct order.

5. Vacuum or pressure bleeder method

  • If using a vacuum pump, attach tubing to bleeder nipple, apply vacuum, then open nipple and allow fluid to draw through until clear and bubble-free.
  • With a pressure bleeder, pressurize the master cylinder reservoir per tool instructions and open bleeder nipples in sequence until clear fluid flows.

6. Finish at the master cylinder

  • Once wheels are clear, bleed at the master cylinder bleed port (if present) to purge remaining air from the master and lines. Some designs require cycling lever or pedal while the master port is open; follow the same open/close pattern to avoid air ingress.
  • Top reservoirs to proper level and reinstall diaphragms & caps securely.

7. Test and verify

  • Confirm firm pedal/lever feel with no sponginess. If soft, repeat bleeding until solid.
  • Check for leaks at bleeder screws, fittings, hoses, and calipers. Torque bleeder nipples to manufacturer spec if known; snug them and recheck for leaks after a short ride.
  • Dispose of old fluid and contaminated rags properly.

Tips & troubleshooting

  • If persistent bubbles appear, inspect for cracked hoses, loose fittings, or a leaking master cylinder seal.
  • Do not mix DOT 3 and DOT 4. If converting, flush system fully; use DOT 4 as recommended for the 750AXi.
  • If a soft pedal remains after bleeding, bench-bleed the master cylinder (remove and secure upright, cycle until no air) before reinstalling.
  • Protect painted panels: wipe spilled fluid immediately with brake cleaner and water; brake fluid will eat paint.

Maintenance interval suggestion

MotoSport recommends replacing brake fluid every 1-2 years depending on use & environment, or sooner if the fluid darkens or brake feel degrades. Frequent trail use or water crossings accelerate moisture absorption.

Final checks specific to the 750AXi

  • After bleeding, inspect the front differential and power steering areas for accidental fluid contact. Refill or top power steering fluid only if low, using the correct fluid for the power steering systemdo not use brake fluid in steering components.
  • Confirm the parking/engine cutoff interlocks and brake light switches operate correctly after reassembly.

Follow these steps and your King Quad 750AXi's braking system will be fresh, responsive, and safe for trail or work. For replacement parts specific to your year/model, view OEM-quality components & brake maintenance supplies on the MotoSport parts page above.

Related Shopping Categories

Shop Brake Fluid for a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.

Shop Brake Bleeders for a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.

Shop Brake Pads for a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.

Shop Brake Lines for a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.

Shop Brake Tools for a 2010 Suzuki King Quad 750AXi 4X4 POWER STEERING 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.