How to Bleed & Replace Brake Fluid on a 2019 Textron Alterra MudPro 700
Shop parts for a 2019 Textron Alterra MudPro 700 ATV.
This MotoSport guide walks you stepbystep through bleeding and replacing the brake fluid on a 2019 Textron Alterra MudPro 700. Procedures are written for the stock hydraulic system found on the MMY ATV and include modelspecific tips owners should note before starting the job.
Safety & Preparations
- Work on a level surface, parking brake off and engine stopped. Chock wheels.
- Wear eye protection and gloves. Brake fluid is corrosive to paint & plastics.
- Use fresh, sealed DOT 4 brake fluid unless your owner's manual states otherwise. Do not mix DOT types.
- Have a clean catch bottle, clear hose, wrench set (open/box wrenches for caliper bleed screws), a turkey baster or brakefluid syringe, and rags ready.
- Keep a container of isopropyl alcohol or brake cleaner to wipe accidental spills from painted surfaces immediately.
Model Notes for the 2019 Alterra MudPro 700
- The MudPro 700 typically uses a single front master cylinder with a combined reservoir and independent caliper bleed screws on each wheel. Confirm reservoir location under the front plastics or near the handlebars on your unit.
- There is no factory ABS on most MudPro 700 models, so bleeding is standard mechanical bleedno scan tool required.
- Caliper bleed screw sizes are small — use the correct wrench to avoid rounding. Keep replacement bleeder screws on hand if corroded.
- MotoSport recommends replacing brake fluid every 12-24 months depending on use and exposure to water/mud for reliable performance in wet riding conditions.
What You'll Need
- DOT 4 brake fluid (fresh, unopened)
- Clear vinyl tubing that fits snug on bleed nipples
- Catch bottle with oneway valve or a clean container and clamp
- Appropriate wrench for bleed screws (commonly 8mm or 10mm)
- Turkey baster or syringe to remove old fluid from reservoir
- Shop rags, gloves, and brake cleaner
- Assistant (recommended) or a vacuum/pressure bleeder if working solo
StepbyStep: Replace Brake Fluid
- Remove bodywork as needed to access the master cylinder reservoir and caliper bleed screws. Keep fairings and paint protected.
- Clean the reservoir cap area to prevent contamination. Remove the cap and diaphragm. Note the fluid level and color before draining.
- Use a turkey baster to remove most of the old fluid from the reservoir. Dispose of fluid properly.
- Top up the reservoir with fresh DOT 4 fluid to the specified level. Do not overfill.
- Attach clear tubing to the nearside front caliper bleed nipple and route into your catch bottle. Leave the reservoir cap off but covered loosely to prevent contamination.
- Have your helper slowly depress the brake lever/pedal several times then hold pressure. Open the bleed screw about a quarter turn to let fluid and air escape into the tubing, then close the screw before the helper releases the lever/pedal. Repeat until clear, bubblefree fluid exits, topping the reservoir frequently to avoid running dry.
- Repeat the bleeding sequence for the opposite front caliper. Maintain reservoir level throughout the process.
- If your MudPro has a rear brake separate circuit, move to the rear caliper and repeat the same procedure for rear reservoir/master cylinder if present.
- After bleeding each caliper, torque bleed screws to the manufacturer's specification if available and wipe any spilled fluid from components immediately.
- Once all calipers show clear fluid and no air, fill the reservoir to the correct level, reinstall diaphragm and cap, and secure bodywork.
- Test brake lever/pedal firmness with the ATV on stands first, then at slow speed in a safe area before trail riding. Confirm no fluid leaks and that pedal/lever feels firm and consistent.
Alternative Methods
- Vacuum bleeder: Attach to the bleed nipple and pull fluid through while topping the reservoir. Faster for solo work but maintain reservoir level.
- Pressure bleeder: Pressurize the reservoir with a calibrated tool to force fluid through all calipers. Use caution to avoid overpressurizing and damaging seals.
Troubleshooting & Tips
- Spongy brakes after bleeding usually indicate remaining air, an overlooked caliper, or a leaking seam. Rebleed and inspect hoses & fittings for leaks or deterioration.
- If brake lever bottoms out and fluid is expelled uncontrollably, stop and inspect master cylinder seals and calipers for leaks or internal failure.
- Replace corroded bleeder screws. Small screws can shear off; have replacements on hand for the MudPro 700.
- Always cap the fluid bottle and store in a cool dry place. Brake fluid absorbs moisture over time, reducing effectiveness.
Final Checks & Maintenance Schedule
- Inspect brake lines, hoses and caliper mounts for wear or corrosion every 6 months or after heavy water exposure.
- MotoSport advises full fluid replacement and system bleed at least every 12-24 months depending on riding conditions. Replace sooner if brakes feel soft or if fluid is dark or contaminated.
- Document the service date and type of fluid used for future reference.
Follow these steps for a safe, reliable brake system on your 2019 Textron Alterra MudPro 700. If you encounter persistent problems or internal master cylinder/caliper failures, consult a qualified ATV technician or contact MotoSport for parts and support.
Related Shopping Categories
Shop Brake Fluid for a 2019 Textron Alterra MudPro 700 ATV.
Shop Brake Bleeders for a 2019 Textron Alterra MudPro 700 ATV.
Shop Brake Pads for a 2019 Textron Alterra MudPro 700 ATV.
Shop Brake Lines for a 2019 Textron Alterra MudPro 700 ATV.
Shop Brake Tools for a 2019 Textron Alterra MudPro 700 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.