How to Bleed and Replace Brake Fluid on a 2011 Honda TRX500 Foreman 4X4 POWER STEERING (FM2)
Shop parts for a 2011 Honda TRX500F_PS ATV.
This MotoSport-exclusive guide gives a clear, step-by-step procedure to replace and properly bleed the brake fluid on a 2011 Honda TRX500 Foreman 4X4 POWER STEERING (FM2). Follow the safety notes and steps exactly to maintain braking performance and avoid contamination that can damage components.
Safety & preparation
- Work on a level surface with the engine off, ignition key removed, and the parking brake engaged.
- Wear eye protection and gloves. Brake fluid is corrosive to paint and plastic – cover painted surfaces and wipe spills immediately.
- Use only fresh, unopened DOT 3 or DOT 4 brake fluid that meets Honda specifications. Do not use DOT 5 (silicone) or mix DOT 5 with DOT 3/4.
- Have a clear hose, a catch bottle, a wrench for bleeder screws, a turkey baster or fluid syringe, clean rags, and a torque wrench for reassembly tasks.
- Dispose of old brake fluid responsibly — do not pour it down drains or on the ground.
What to know about the 2011 TRX500 Foreman FM2
- The FM2 designation indicates the power steering model; power steering uses a separate hydraulic system. Keep brake fluid and power steering fluid separate — do not contaminate either reservoir.
- This ATV uses hydraulic disc brakes front and rear. There is no integrated ABS system to complicate bleeding, but components are sensitive to contamination and air.
- Brake master cylinder reservoirs are small — work quickly to keep air out and top the reservoir during bleeding.
- Inspect brake lines, calipers, pads, and rotors when servicing fluid. Swollen hoses, corroded fittings, or pitted rotors should be replaced before or during the job.
Tools & consumables
- DOT 3 or DOT 4 brake fluid (Honda-approved)
- Clear vinyl tubing that fits bleeder nipples snugly
- Catch bottle (marked used brake fluid)
- Brake bleeder wrench (open-end wrench sized to bleeder nipples)
- Turkey baster or fluid syringe
- Clean rags, brake cleaner, gloves, eye protection
- Jack/stands or ramps if wheel removal is needed
General bleeding strategy
Bleed the system from the wheel farthest from the master cylinder first, proceeding to the closest. On the TRX500 that pattern generally is: rear passenger (right rear), rear driver (left rear), front passenger (right front), front driver (left front). If your unit has a single master running a different routing, follow the farthest-to-nearest rule by visual inspection of hose routing.
Step-by-step: full fluid replacement and bleeding
- Remove the brake fluid reservoir cap(s) and diaphragms carefully. Clean the cap and reservoir area around the opening to prevent dirt entering the system.
- Use a turkey baster or syringe to extract as much old fluid from the master cylinder reservoir as possible. Do not reuse fluid.
- Top the reservoir with fresh DOT 3 or DOT 4 fluid to the specified level mark. Keep the cap off but covered with a clean rag between operations to reduce contamination.
- Starting at the farthest wheel (right rear), place a clear hose over the bleeder nipple and submerge the other end in a catch bottle partially filled with fresh fluid to prevent air re-entry.
- Have an assistant pump the brake lever/pedal several times and hold it down. With the pedal/lever held down, open the bleeder nipple about 1/4 turn to let fluid and air escape. When flow slows, close the bleeder, then release the pedal/lever. Repeat pumping until clear, bubble-free fluid flows and no air is drawn from the master cylinder. Keep the master reservoir topped between cycles to prevent drawing air in.
- Repeat the same process for the next wheel in the sequence: left rear, right front, left front. Always keep the reservoir topped with fresh fluid during the entire job.
- Inspect bleed nipple threads and hoses for leaks while cycling. Tighten the bleeder nipple snugly after each wheel. Do not overtighten; snug plus a small fraction of a turn is sufficient.
- Once all wheels show clear fluid with no bubbles, fill the reservoir to the proper level, reinstall the diaphragms and caps, and wipe any spilled fluid from painted or plastic surfaces with brake cleaner and a clean rag.
- Bleed the brakes a final time in normal use — with the ATV on the ground, slowly apply the brakes repeatedly and confirm a firm pedal/lever feel with no sinking. If the lever/pedal feels spongy, repeat bleeding focusing on the circuit still containing air.
- Check for leaks around bleeder nipples, hose connections, and calipers after a short test ride. Recheck fluid level after a few miles and top if necessary.
Common issues & troubleshooting
- Persistent spongy lever/ pedal: likely remaining air in the system or a faulty master cylinder seal. Re-bleed and, if problem continues, inspect master cylinder for leaks or internal seal failure.
- Brake drag after bleeding: may indicate a caliper piston sticking or incorrect hose routing. Clean and inspect calipers, ensure pistons retract smoothly, and verify hose clamp positions.
- Visible corrosion or cracked hoses: replace worn hoses and hardware before bleeding to avoid repeating the job.
Maintenance tips specific to the TRX500 FM2
- Because the FM2 model has hydraulic power steering nearby, take care to keep brake fluid away from the power steering reservoir and components; the two fluids are not interchangeable.
- When accessing rear calipers, you may need to remove rear cargo racks or panels for clearance on some FM2 configurations. Keep fasteners secured to specified torque where applicable.
- Inspect the brake light switch and parking brake components while servicing brakes — wiring or switch misadjustment can cause runaways or warning light issues after reassembly.
Final safety check
- Confirm lever/pedal firmness with the engine both off and at idle. Test brakes at low speed in a safe area before returning to normal operation.
- Double-check for leaks, proper hose routing clearances, and that all reservoir caps are secure.
Perform this service every 1-2 years or sooner if fluid appears dark or contaminated. When in doubt about a persistent brake problem, contact a qualified technician to inspect and repair the system to MotoSport standards.
Related Shopping Categories
Shop Brake Fluid for a 2011 Honda TRX500F-PS ATV.
Shop Brake Bleeders for a 2011 Honda TRX500F-PS ATV.
Shop Brake Pads for a 2011 Honda TRX500F-PS ATV.
Shop Brake Lines for a 2011 Honda TRX500F-PS ATV.
Shop Brake Tools for a 2011 Honda TRX500F-PS 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.