How to Bleed and Replace Brake Fluid on a 2018 Can-Am Outlander 650 XT
Shop parts for a 2018 Can-Am Outlander 650 XT ATV.
This step-by-step guide, proprietary to MotoSport, walks you through safely flushing and replacing the brake fluid on a 2018 Can-Am Outlander 650 XT (MMY CAN_AM;OL650XT;2018). Follow these instructions precisely, use appropriate safety gear, and consult your service manual for model-specific illustrations and torque specs.
Important model notes for the 2018 Outlander 650 XT
- The Outlander 650 XT uses hydraulic disc brakes with sealed calipers and a reservoir or reservoirs that serve the front and rear brakes; identify which master cylinder controls which circuit before bleeding.
- Most factory systems on this MMY use DOT 4 brake fluid from the factory; confirm the cap marking at the reservoir. Do not mix DOT 5 (silicone) with DOT 4.
- This model does not have a complex integrated ABS system on many trims; if your ATV has factory ABS/IMPACT features, refer to the service manual for ABS-specific bleed procedures.
- Brake fluid is hygroscopic — it absorbs moisture over time. Replace or flush every 12-24 months depending on use and exposure to water.
Tools & supplies
- DOT 4 brake fluid (fresh, unopened bottle)
- Clear hose and catch bottle or vacuum/pressure brake bleeder
- Socket set, open-end wrenches for bleeder nipples, hex or Torx as required by the calipers
- Brake cleaner, shop rags, gloves, eye protection
- Jack or ramps and stands to secure the ATV safely
- Small container for used fluid and absorbent pads for spills
Preparation
- Park on level ground, engage park brake where applicable, remove the key, and disconnect the battery negative terminal if you will be working near electrical connectors.
- Clean the reservoirs, reservoir caps, and surrounding areas to prevent contamination when opening.
- Identify which reservoir serves which brake circuit. On some Outlander models there are separate reservoirs or internal partitions; mark them if needed.
- Lift the ATV so wheels and calipers are accessible, and support it securely with stands.
Fluid type and handling
- Use fresh DOT 4 brake fluid only. Never reuse drained fluid or top off from an old container.
- Avoid any contact between brake fluid and painted surfaces — it will damage paint. Keep rags and brake cleaner nearby for quick cleanup.
Bleeding strategy
Always bleed the circuit controlled by a master cylinder starting with the caliper farthest from that master cylinder, then work progressively closer. If the Outlander has separate front and rear master cylinders, treat each independently. If a single master feeds multiple calipers, start at the furthest caliper from the reservoir.
Manual bleeding procedure (pump — single-operator alternative)
- Remove reservoir cap and diaphragm; top to a safe level with fresh DOT 4 fluid. Keep the cap off but the opening covered to minimize contamination.
- Start with the caliper farthest from the master cylinder. Clean the bleeder screw and attach a clear hose to the bleeder nipple, routing the other end into a catch bottle partially filled with fresh fluid to prevent air re-entry.
- Have an assistant pump the brake lever or pedal slowly several times and hold pressure on the lever/pedal. While held, open the bleeder screw about a quarter-turn to allow fluid and air to exit, then close the screw before the assistant releases pressure. Repeat until clear, bubble-free fluid runs through the hose.
- Keep the reservoir topped up frequently during the process to avoid drawing air into the master cylinder.
- Work through each caliper for that circuit in order from furthest to nearest.
- Once a circuit is complete, tighten bleeder screws to snuggly secure torque; do not overtighten. Wipe any spilled fluid and replace diaphragm and cap when finished.
Vacuum or pressure bleeder method (recommended for one-person, cleaner process)
- Attach the vacuum or pressure bleeder to the master cylinder reservoir or to each bleeder nipple as instructed by the tool manufacturer.
- Use the same caliper-order principle — farthest to nearest. Operate the tool until only clean, bubble-free fluid exits.
- Keep the reservoir level monitored and topped while using a pressure bleeder or vacuum unit.
Post-bleed checks and finish
- Verify lever and pedal feel — both should be firm with no sponginess. If spongy, repeat bleeding until consistent firmness is achieved.
- Check for leaks at bleeder screws, banjo fittings, and hose connections while pressing the brake.
- Torque any caliper and banjo bolts to manufacturer specs from the service manual. If you do not have the spec handy, tighten to a secure fit and consult the manual before high-load operation.
- Dispose of used brake fluid according to local hazardous-waste regulations.
- Test ride cautiously at low speed to confirm proper braking performance before normal use.
Common issues & troubleshooting
- Persistent spongy lever after bleeding: check for air trapped in ABS modulator (if equipped) or in flexible hoses; hose degradation can trap air and may require replacement.
- If a caliper leaks or piston fluid seeps, service or replace the caliper seals rather than repeatedly bleeding.
- Contaminated fluid (dark, gritty): perform a full system flush and replace fluid immediately.
Maintenance tips specific to the Outlander 650 XT owner
- Inspect brake hoses and fittings annually for cracks, swelling, or corrosion. Replace any suspect hose; this model sees a lot of wet, muddy use.
- Keep the reservoirs sealed and check them after heavy water crossings. Moisture contamination shortens fluid life.
- Store spare DOT 4 fluid in a sealed container in a cool, dry place; once opened, fluid will absorb moisture over time so prefer unopened bottles for the flush.
- If your ATV operates in salt, coastal, or highly wet environments, increase inspection frequency and consider a yearly brake fluid change.
When in doubt, use the official Can-Am service manual for torque values and model-specific details. Properly bled brakes are critical for safe riding — if you are not comfortable performing these procedures, have a qualified technician perform the service.
Related Shopping Categories
Shop Brake Fluid for a 2018 Can-Am Outlander 650 XT ATV.
Shop Brake Bleeders for a 2018 Can-Am Outlander 650 XT ATV.
Shop Brake Pads for a 2018 Can-Am Outlander 650 XT ATV.
Shop Brake Lines for a 2018 Can-Am Outlander 650 XT ATV.
Shop Brake Tools for a 2018 Can-Am Outlander 650 XT 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.