How to bleed and replace brake fluid on a 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING
Shop parts for a 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.
This MotoSport guide walks you step-by-step through draining, replacing, and properly bleeding the brake system on the 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING. Follow safety precautions, use the correct fluid, and respect the model-specific notes below to keep braking performance crisp and reliable.
What you need
- DOT 4 brake fluid (Suzuki recommends DOT 4; do not use silicone DOT 5)
- Bleeder wrench or box wrench set
- Clear plastic hose to fit bleeder nipples
- Catch container for old fluid
- Hand pump or vacuum/pressure bleeder (optional but speeds the job)
- Turkey baster or large syringe for reservoir drain
- Clean rags, brake cleaner, gloves and eye protection
- Jack or ramps and stands if you need to lift the ATV
Model-specific notes for the 2020 King Quad 750AXi 4X4 POWER STEERING
- The King Quad 750AXi has conventional hydraulic brakes with a front master cylinder at the handlebar for front calipers and a rear master cylinder/pedal assembly feeding the rear caliper(s). Verify which reservoir feeds which caliper before bleeding.
- Power steering is a separate hydraulic system; never add brake fluid to the power steering reservoir and avoid cross-contamination. Brake fluid will damage power steering seals.
- Stock calipers and hoses are rated for DOT 4; use fresh, high-quality DOT 4 fluid. Mixing different fluid chemistries (especially silicone DOT 5) is not acceptable.
- If the vehicle has aftermarket brake components, follow the component maker's bleed sequence if it differs from the factory method.
Safety first
- Work on a level surface, chock wheels, and remove the key.
- Wear eye protection and gloves; brake fluid is corrosive to paint and skin.
- Keep rags handy to immediately wipe spilled fluid; protect painted surfaces.
Step-by-step: drain & replace brake fluid
- Inspect system: Check reservoirs, hoses, calipers, pads, and lines for leaks or damage. Replace any suspect parts before bleeding.
- Clean the reservoir caps and surrounding area to keep contaminants out.
- Remove old fluid from each reservoir using a turkey baster or syringe until most fluid is gone, leaving a small amount to cover the master cylinder ports.
- Top up with fresh DOT 4 to the recommended fill line.
- Decide bleed sequence: always bleed from the caliper farthest from the related master cylinder first, then proceed to the next farthest, finishing with the closest. Typical sequence: for front master cylinder bleed the rear-most front caliper first (if independent), then the other front caliper; for rear master cylinder bleed the rear caliper(s) furthest from the master cylinder first. If unsure which caliper is farthest, visually trace lines from the reservoir.
- Attach clear hose to the bleeder nipple; place other end in a catch bottle partially filled with clean fluid to prevent air re-entry.
- Have an assistant slowly depress and hold the brake lever/pedal. Open the bleeder nipple about a quarter-turn so fluid and air escape. Close nipple, then release the lever/pedal. Repeat until clear fluid with no air bubbles emerges. Keep reservoir topped up between cycles to avoid drawing air into the system.
- For a one-person job use a vacuum bleeder or a pressure bleeder at the reservoir and follow the tool instructions. A hand brake pedal pump can be used: pump to build modest pressure, hold, open bleeder until flow stops, close, release pedal, repeat.
- Repeat the bleed process for each caliper following the sequence. Replace fluid in the reservoir as needed and never let it run dry.
- After bleeding, tighten bleeder nipples to a snug, secure fit. Wipe fittings clean and inspect for leaks.
- Check pedal/lever feel: it should be firm and consistent. If soft or spongy, more bleeding or inspection for leaks/air is required.
- Test ride slowly in a safe area to verify braking performance and check for leaks. Reinspect fluid level and top up to the correct mark.
Flushing the entire system
If the fluid is very dark or contaminated, fully flush one circuit at a time: drain reservoir, refill with fresh DOT 4, then bleed until clean fluid exits each caliper. Repeat for the other circuit. Dispose of old fluid properly at an approved facility.
Troubleshooting & maintenance tips
- Persistent sponginess after thorough bleeding suggests a leak, collapsed hose, or master cylinder issueinspect and replace as needed.
- If air repeatedly enters the system, check banjo/line fittings, hose ends, and caliper seals for leaks or loose bolts.
- Replace rubber hoses if they show swelling, cracking, or age; soft hoses can hold air and degrade braking response.
- Brake pads and rotors should be inspected during the service cycle; excessive wear is easier to correct while wheels are off.
- Brake fluid absorbs moisture with age; replace every 1-2 years or sooner under heavy use or wet/harsh conditions.
Final checks
- Confirm reservoir caps are seated and sealed.
- Torque any removed fasteners to manufacturer specs where available; if unknown, tighten securely without over-torquing.
- Clean any spilled fluid from painted surfaces and recheck fluid level after the first short ride.
Following these steps will restore brake fluid integrity and braking feel on your 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING. If you encounter component failure or uncertain symptoms, consult a qualified technician or bring the ATV to a service center.
Related Shopping Categories
Shop Brake Fluid for a 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.
Shop Brake Bleeders for a 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.
Shop Brake Pads for a 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.
Shop Brake Lines for a 2020 Suzuki King Quad 750AXi 4X4 POWER STEERING ATV.
Shop Brake Tools for a 2020 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.