How to Bleed and Replace Brake Fluid on a 2011 Honda Rincon 680 4X4
Shop parts for a 2011 Honda Rincon 680 4X4 ATV.
Overview
This MotoSport-exclusive guide walks you step-by-step through draining and bleeding the brake system on a 2011 Honda Rincon 680 4X4 (MMY). Follow safe shop practices, use quality tools & brake fluid, and perform a firm brake-test before riding.
What you need
- Fresh DOT 3 brake fluid (Honda recommends DOT 3) – unopened
- Brake-bleed kit or clear tubing and a catch bottle
- Hand vacuum pump or pressure bleeder (recommended)
- Wrenches that fit the bleeder nipples (usually 8mm or 10mm)
- Screwdrivers and small pliers, clean rags, gloves, eye protection
- Thread-safe container for old fluid disposal
- Service stand or blocks to keep the machine stable and level
Safety and preparation
- Work on a flat, stable surface with the engine off and key removed.
- Engage park/parking brake and chock wheels. Remove the battery negative if you will be working near electricals.
- Brake fluid is highly corrosive to paint & plastics — cover bodywork and wipe spills immediately.
- Keep the reservoir cap closed except when adding fluid to avoid contamination and moisture absorption.
Model notes for the 2011 Honda Rincon 680 4X4 (MMY)
- The Rincon 680 uses conventional hydraulic disc brakes front and rear with a single master cylinder; there is no ABS on this model.
- Reservoir location is on the handlebar/master cylinder assembly under the plastic cover. Work with the reservoir at a comfortable height and keep it topped up during bleeding to prevent air entry.
- Brake system routing and caliper layout are compact — take care removing plastics if you need improved access to bleeder nipples.
- Use DOT 3 brake fluid as specified by Honda for long-term compatibility with seals and components.
Step-by-step procedure
- Clean reservoir area and surrounding parts. Remove the reservoir cap and diaphragm, then clean the top of the reservoir. Inspect fluid color for contamination or moisture; old fluid is often dark.
- Top the reservoir with fresh DOT 3 fluid to the max mark. Keep the cap and diaphragm immediately available to reseal between steps.
- Locate bleeder nipples on each caliper. Put a clear tube over the nipple and submerge the other end in a catch bottle partially filled with fresh fluid to prevent air re-entry.
- Follow the correct wheel sequence: start with the wheel furthest from the master cylinder and finish with the closest. For most Rincon setups that means rear then front, and on the front wheels left/right depending on master cylinder position. If unsure, start with the rear caliper, then the front calipers, working from the farthest caliper to the nearest.
- One caliper at a time: loosen the bleeder nipple slightly. Have an assistant pump the brake pedal firmly several times and hold pressure, or use a hand vacuum pump/pressure bleeder. If using a pedal method, when the pedal is held down, open the bleeder to let fluid and air escape until flow is a steady stream of clear fluid, then close the bleeder before the assistant releases the pedal.
- Keep the reservoir topped during the entire process. Never let it go empty or you will reintroduce air into the system.
- Repeat the pump/open/close cycles until you see only clean, bubble-free fluid leaving the bleeder and the pedal feels firm. Move to the next caliper in sequence and repeat.
- Once all calipers are bled, tighten bleeder nipples to proper snugness. Wipe any spilled fluid, reinstall the reservoir diaphragm and cap, and clean the area.
- Bleed the system again if the pedal still feels spongy. For stubborn air pockets, a gravity bleed or pressure bleeder is more effective than pedal-only methods.
- After bleeding, check pedal firmness with the engine off, then start the engine and test the brake feel again. Re-torque any caliper bolts or fasteners you disturbed while accessing bleeders.
Post-bleed checks
- Inspect brake lines, hoses, pads, and rotors for wear or leaks. Replace any component that shows cracking, swelling, or significant wear.
- Confirm fluid level is between min & max marks; top if necessary and re-seal the cap.
- Test brakes at low speed in a safe area to confirm strong, predictable stopping before normal riding.
- Dispose of old brake fluid responsibly at an approved recycling center.
Troubleshooting tips
- Persistent soft pedal after thorough bleeding indicates either trapped air, a leaking component, or a failing master cylinder. Inspect seals and master cylinder operation.
- If one caliper returns air repeatedly, check for damaged hoses or low-pressure sealing at the bleeder nipple.
- Contaminated fluid (dark, murky, or odorous) should trigger a full system flush and inspection of rubber parts for compatibility damage.
Maintenance recommendations
- Replace brake fluid every 1-2 years depending on use and storage conditions to minimize moisture absorption and internal corrosion.
- Inspect pads and rotors at regular service intervals; replace pads before they reach the wear indicator.
- Keep a spare bottle of DOT 3 in your service kit and always use fresh, sealed fluid when topping up.
Following this MotoSport proprietary procedure will keep your 2011 Honda Rincon 680 4X4 braking safely and reliably. If you encounter persistent problems, consult a qualified ATV mechanic or contact MotoSport for parts and support.
Related Shopping Categories
Shop Brake Fluid for a 2011 Honda Rincon 680 4X4 ATV.
Shop Brake Bleeders for a 2011 Honda Rincon 680 4X4 ATV.
Shop Brake Pads for a 2011 Honda Rincon 680 4X4 ATV.
Shop Brake Lines for a 2011 Honda Rincon 680 4X4 ATV.
Shop Brake Tools for a 2011 Honda Rincon 680 4X4 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.