How to Bleed and Replace Brake Fluid on a 2008 Honda TRX500 Foreman 4X4 ES POWER STEERING (FE2)
Shop parts for a 2008 Honda TRX500FE_P ATV.
This stepbystep MotoSport guide covers tools, safety, and a robust bleed & fluid replacement procedure tailored to the 2008 Honda TRX500 Foreman 4X4 ES POWER STEERING (FE2). Follow each step carefully, use clean tools, and always consult your owner's manual for any modelspecific tolerances.
What you need
- Hondaapproved brake fluid (check owner's manual; DOT 4 recommended by Honda dealers)
- Clear hose that fits bleed nipples
- Catch bottle for old fluid
- Wrench for bleed nipples (typically 8 mm or 10 mm; confirm fit)
- Turkey baster or fluid syringe (for removing old fluid from master reservoir)
- Brake bleeder (vacuum hand pump or pressure bleeder optional)
- Shop rags, gloves, safety glasses
- Jack and stands or ramps (if needed to access calipers)
- Torque wrench (for caliper hardware reinstall if removed)
Safety & prep
- Work on a level surface with ignition off and key removed. Park brake engaged and wheels chocked.
- Brake fluid is corrosive to paint and plastic — protect bodywork and rinse spills immediately with water.
- Do not allow dirt or moisture to enter the master cylinder reservoir. Keep fluid bottle sealed until use.
- Dispose of old brake fluid properly as hazardous waste.
Model notes specific to the 2008 TRX500FE2
- The FE2 model has electric start, ES (electric shift) transmission options and power steering. Brake hydraulic circuits are conventional ATV calipers without ABS. There is a front master reservoir (front brakes) and a separate rear master for rear brakes on some trims — confirm which reservoirs your machine has. Do not confuse power steering fluid reservoir with brake fluid reservoir; they are separate systems.
- Because this ATV often sees water & mud, inspect caliper seals, hoses, and banjos for swelling, cracks or seepage during the service. Replace any suspect rubber lines or seals before refilling the system.
- Use new crush washers on caliper banjo fittings if you remove them. Corroded hardware should be replaced to avoid leaks.
Overview of the procedure
You will remove old fluid from the reservoir, then push new fluid through each brake circuit until clear fluid and no air bubbles appear. Bleed in the correct order: the caliper farthest from the master cylinder first, working toward the closest. Common sequence for TRX500: right rear, left rear, right front, left front. Confirm which reservoir supplies each circuit on your machine.
Stepbystep: full fluid replacement and bleed
- Remove the reservoir cap(s). If your reservoirs have diaphragms, peel back carefully and set cap aside on a clean surface.
- Siphon or turkeybaster out as much old fluid as possible from the reservoir(s). Wipe out any grime. Refill the reservoir with fresh brake fluid to the full mark.
- Start with the caliper farthest from the master cylinder (usually right rear). Fit the clear hose over the bleed nipple and submerge the other end in a jar partially filled with fresh fluid to avoid sucking air back in.
- Have an assistant slowly depress the brake pedal 2-3 times and then hold pressure. Open the bleed nipple about a 1/4 turn; fluid and air will flow into the jar. Close the nipple, then instruct the assistant to release the pedal. Repeat until you see clear, bubblefree fluid. Keep the reservoir topped off between cycles to prevent new air entry.
- Move to the next caliper in the sequence: left rear, right front, left front. Use the same pumpandhold or vacuum method. Maintain reservoir level throughout.
- If you're using a vacuum bleeder, attach vacuum to the bleed nipple, open nipple, and draw fluid until clear. If using a pressure bleeder, pressurize per tool instructions and open each nipple until clear fluid appears.
- After the last caliper, ensure the reservoir is filled to the proper mark, reinstall diaphragm and cap, and tighten bleed nipples to snug (consult factory torque if available). Wipe any spilled fluid clean.
- Cycle the brake pedal at low throttle and verify a firm pedal feel before riding. If the pedal feels spongy, repeat bleeding sequence or consider bench bleeding the master if removable.
Bleeding the master cylinder (if pedal remains spongy)
- If the master cylinder contains air, remove it (if serviceable) and bench bleed per manufacturer instructions: mount it in a vise, fill reservoir, and use soft tubing from the outlet ports back into the reservoir while pumping the piston until no bubbles appear.
- If you are uncomfortable with master removal, repeat the wheelbywheel bleeding several times and ensure reservoirs stay full. Persistent sponginess can indicate a leaking line, caliper seal, or internal master failure — replace faulty components.
Tips & common issues
- Never mix different types of brake fluid. If you're unsure what's in the system, fully flush and replace with fresh DOTapproved fluid.
- If caliper pistons are seized or slow, remove caliper and clean or rebuild piston seals. Corroded pistons allow air ingress and poor braking.
- Inspect steel lines for corrosion and rubber hoses for cracking or bulging. Replace any compromised lines.
- After service, roadcheck at low speed and reinspect for leaks. Retorque any fittings after initial short ride if required.
Final checklist
- Reservoir(s) filled to proper level and caps secured.
- No visible leaks at calipers, hoses, banjo bolts, or master cylinders.
- Firm and predictable brake pedal feel at rest and under gentle test braking.
- Old fluid disposed of properly; work area cleaned of spilled fluid.
Perform this service annually or sooner if you ride in wet/muddy conditions. When in doubt, consult a certified ATV technician or a MotoSport service specialist for help sourcing the correct parts and fluids for your TRX500FE2.
Related Shopping Categories
Shop Brake Fluid for a 2008 Honda TRX500FE_P ATV.
Shop Brake Bleeders for a 2008 Honda TRX500FE_P ATV.
Shop Brake Pads for a 2008 Honda TRX500FE_P ATV.
Shop Brake Lines for a 2008 Honda TRX500FE_P ATV.
Shop Brake Tools for a 2008 Honda TRX500FE_P 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.