How to Bleed and Replace Brake Fluid on a 2025 Can-Am Renegade 650
Shop parts for a 2025 Can-Am Renegade 650 ATV.
This MotoSport guide walks you step-by-step through flushing and replacing the brake fluid on a 2025 Can-Am Renegade 650 (MMY CAN_AM;REN650;2025). Follow these instructions to keep braking performance sharp and reliable. If your Renegade has ABS or any factory electronic braking aid, read the note below and consult the owner’s manual before beginning.
What you’ll need
- DOT 4 brake fluid (new, unopened bottle)
- Clear plastic tubing to fit bleed nipples
- Catch bottle for old fluid
- Brake bleeder kit, vacuum pump, or Mityvac (optional but recommended)
- Box-end wrenches sized for bleed nipples and banjo bolts
- Clean shop rags and isopropyl alcohol for cleaning
- Latex or nitrile gloves and eye protection
- Torque wrench for reassembly if you remove banjo bolts or calipers
- New copper crush washers for banjo bolts (recommended if lines are disturbed)
Model-specific notes for the 2025 Renegade 650
- The Renegade 650 uses hydraulic disc brakes with separate master cylinders for front (handlebar) and rear (foot) circuits. The front master is mounted to the handlebar; the rear master is near the foot controls.
- If your machine is fitted with optional ABS or stability electronics, the hydraulic circuit or ECU may require a special bleeder procedure. If equipped, consult the owner’s manual or contact MotoSport tech support before proceeding.
- Brake lines on the Renegade are routed close to painted surfaces and plastics. Brake fluid will damage paint & plastics; protect bodywork with rags and tape any exposed areas.
- If you disconnect banjo fittings, replace crush washers and torque to manufacturer spec. If you don’t have the spec available, snug then back off — avoid over-torquing.
Safety and prep
- Work on a clean, level surface with the engine off and key removed.
- Wear gloves and eye protection. Brake fluid is corrosive to paint and skin.
- Clean the master cylinder reservoirs and caps before opening to prevent contamination.
- Park the Renegade on a stable stand so wheels can rotate freely if you will pump calipers during bleeding.
Recommended bleeding sequence
Bleed the caliper farthest from each master cylinder first, moving toward the master cylinder. For the Renegade 650 this typically means:
- Rear caliper circuit: bleed the rear caliper (if single rear caliper, it’s that unit).
- Front caliper circuit: if dual front calipers, bleed the caliper farthest from the front master first, then the nearer caliper.
- Finally, bench-check each master cylinder reservoir level and top to proper fill line during the process.
Step-by-step fluid replacement and bleed
- Remove reservoir caps. Clean around caps thoroughly. Loosen caps but do not remove dust covers if present.
- Siphon or absorb old fluid from each reservoir until fluid level is low but not empty. Recycle used fluid properly; do not reuse.
- Top each reservoir with fresh DOT 4 fluid to the recommended level. Keep caps loosely in place to reduce contamination.
- Start with the farthest caliper from the master cylinder. Fit clear tubing over the bleed nipple and route into a catch bottle partially filled with clean fluid to prevent air being sucked back in.
- Have an assistant slowly squeeze the brake lever or pedal several times, then hold pressure. Open the bleed nipple a 1/4 to 1/2 turn until fluid flows, letting air and old fluid exit into the bottle. Close the nipple before the assistant releases pressure. Repeat until only clean fluid and no air bubbles appear. Keep reservoir topped during the process.
- Alternatively, use a vacuum bleeder or Mityvac at the bleed nipple to draw fluid while you keep the reservoir topped. This is a one-person-friendly method and reduces the chance of introducing air.
- Work through each caliper in the sequence described above. After each caliper is complete, top the reservoir and ensure the cap is loosely fitted between calipers.
- Once all calipers are bled, pump the lever/pedal to confirm a firm feel. Recheck reservoirs and top to the specified level, then reinstall and tighten caps.
- Inspect for leaks around bleed nipples, banjo bolts, and lines. Tighten as necessary and torque bolts to appropriate spec if you disconnected them. Replace any copper crush washers used on banjo fittings.
- Clean any spilled fluid immediately with isopropyl alcohol and rinse area with water. Protect painted surfaces & plastics during cleanup.
- Test ride slowly in a safe area to verify braking performance. Bed the brakes if pads were exposed to contaminated fluid or replaced during the job.
Common issues and troubleshooting
- Spongy lever/pedal after bleeding: re-bleed, ensuring the reservoir never runs low and no air is introduced. Check for collapsed or cracked lines and faulty master cylinder seals.
- Persistent air: use a pressure or vacuum bleeder and work with both the lever/pedal and caliper bleed nipples. Tilt the bike slightly or rotate wheels to help dislodge trapped bubbles.
- Brake drag after bleeding: ensure caliper pistons are fully seated and sliders are free. Check routing so lines aren’t binding.
Maintenance interval and disposal
Brake fluid attracts moisture and should be replaced per a regular service interval or at least every two years under normal conditions. Always dispose of used brake fluid at a proper recycling facility; never pour it down drains or on the ground.
Final checks
- Ensure all caps are secure and no leaks exist at any fitting.
- Confirm braking force and modulation during a low-speed test in a safe area before normal riding.
- Record the service date and mileage in your maintenance log.
For OEM replacement parts, brake lines, seals, or crush washers specific to the 2025 Can-Am Renegade 650, trust MotoSport for correct fitment and warranty-backed parts. If you’re unsure about ABS-equipped units or encounter persistent hydraulic issues, contact a certified ATV technician.
Related Shopping Categories
Shop Brake Fluid for a 2025 Can-Am Renegade 650 ATV.
Shop Brake Bleeders for a 2025 Can-Am Renegade 650 ATV.
Shop Brake Pads for a 2025 Can-Am Renegade 650 ATV.
Shop Brake Lines for a 2025 Can-Am Renegade 650 ATV.
Shop Brake Tools for a 2025 Can-Am Renegade 650 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.