How to Bleed and Replace Brake Fluid on a 2010 Can-Am DS70

Shop parts for a 2010 Can-Am DS70 ATV.

This MotoSport-exclusive guide walks you step-by-step through safely replacing and bleeding the brake fluid on a 2010 Can-Am DS70. Follow these instructions exactly for reliable brake performance and long component life.

Before you start – model notes

  • The Can-Am DS70 is a youth-class ATV. On many DS70s the front brakes are hydraulic while the rear brake may be a mechanical cable. Inspect the rear brake linkage first: if the rear operates via a cable, it does not require brake fluid service.
  • Always check the brake-reservoir cap for the DOT rating embossed on the cap or reservoir (DOT 3 or DOT 4). Use only the specified fluid type. If in doubt, follow the cap marking.
  • Work on a cold engine/vehicle in a well-ventilated area. Brake fluid is hygroscopic and corrosive to paint & plastics; keep rags ready and clean up spills immediately.

Tools & supplies

  • Appropriate DOT brake fluid (per reservoir marking)
  • Clear tubing small enough to fit bleed nipple
  • Catch bottle or syringe for used fluid
  • Box wrench or spanner sized for bleed nipple
  • One-way vacuum pump or hand helper for lever/pedal cycling
  • Clean shop rags, gloves, eye protection
  • Small funnel, brake-clean spray, and a container for old fluid disposal

Preparation

  1. Park the ATV on level ground and secure it with a block under wheels so it won’t roll.
  2. Locate the brake-fluid reservoir(s). On handlebar master cylinders the cap is on the lever housing; on foot master cylinders it’s on the frame-mounted unit. Clean the cap area thoroughly to prevent contamination when opened.
  3. Inspect hoses, lines, and calipers for cracks, leaks, swelling or corrosion. Replace any visibly damaged parts before bleeding.
  4. Remove the reservoir cap and diaphragm carefully. Use a clean funnel if topping off new fluid during the procedure. Keep the reservoir covered with a clean cloth to limit moisture intake while you work.

Bleeding sequence

Always bleed the caliper farthest from the master cylinder first, then work toward the closest. For a single-hose system: rear-most caliper first, then front-most. If the rear is cable-operated, only bleed the hydraulic circuit(s).

Step-by-step bleed & replace procedure

  1. Remove most of the old fluid from the reservoir using a syringe or turkey baster. Dispose of it properly.
  2. Top the reservoir with fresh fluid to the full mark. Leave the cap off but covered loosely to prevent contamination.
  3. Attach clear tubing to the bleed nipple on the caliper and submerge the other end in a small catch bottle partially filled with clean fluid (prevents air re-entry).
  4. Crack the bleed nipple about a quarter turn. Have an assistant slowly squeeze and hold the brake lever/pedal, or use a one-way vacuum pump at the master cylinder to draw fluid. If using a helper, proceed as follows:
  5. While the lever/pedal is held, open the nipple to let fluid flow into the tubing. Close the nipple before the assistant releases the lever. Repeat squeezes until fluid runs clear with no bubbles. Keep topping the reservoir so it never runs low.
  6. Repeat the process for each caliper in the correct sequence. For dual-front setups do each front caliper individually. For single hydraulic circuits only bleed that circuit.
  7. Once all lines show clear, tighten bleed nipples to spec snug (do not over-torque), wipe away any spilled fluid, and refill the reservoir to the correct level. Reinstall diaphragm and cap.
  8. Pump the brake lever/pedal several times to restore firm feel. If the lever remains spongy, repeat bleeding until firm. Air trapped in inline ABS or complex valves may require a professional scan-tool or bench-bleed procedure.

Bench-bleeding master cylinder (recommended if master cylinder was emptied)

  1. If you remove the master cylinder or it was drained completely, bench-bleed it before reinstalling. Secure the master in a vise, fill with fluid, and use short tubing back to the reservoir ports while pushing the piston until no bubbles emerge.
  2. Install the bled master cylinder and reconnect lines, then proceed to caliper bleeding as above.

Final checks & break-in

  • Verify there are no leaks at fittings, hoses, or calipers. Inspect for wet spots while applying moderate brake pressure.
  • Test brake function at slow speed in a safe area before normal operation. Expect slightly reduced performance until fluid and pads bed-in.
  • Dispose of used fluid at a hazardous-waste or automotive-recycling center; do not pour down drains.
  • Record the change date and mileage in your maintenance log. Brake fluid typically should be replaced periodically per usage and storage conditions – at minimum every 12-24 months for off-road machines that see seasonal storage.

Common issues specific to the DS70

  • The small reservoir capacity on youth ATVs means fluid becomes contaminated faster. Change fluid more frequently if the ATV spends a lot of time in wet, dirty conditions.
  • Some DS70s were equipped with simple hydraulic components that are less tolerant of air in the lines. Take extra care to keep the reservoir level high during bleeding and to bench-bleed the master if it has been emptied.
  • If the rear is cable-driven, inspect and lube the cable periodically; a sticky cable can mimic hydraulic problems but bleeding will not fix it.
  • Replacement parts for wear items & seals should be OEM-equivalent. Use new crush washers for bleed nipples if corrosion is present.

When to seek professional help

  • If the lever/pedal remains soft after multiple bleeding attempts, or you find contaminated or foam-like fluid, have a certified technician inspect the ABS valves (if equipped) or plumbing.
  • If you notice persistent leaks, swollen hoses, or damaged calipers, stop and replace parts before riding.

Perform brake fluid service carefully & regularly to keep your DS70 safe and responsive. If you need replacement lines, seals or master-cylinder parts, visit our parts page above to find what fits your model.

Related Shopping Categories

Shop Brake Fluid for a 2010 Can-Am DS70 ATV.

Shop Brake Bleeders for a 2010 Can-Am DS70 ATV.

Shop Brake Pads for a 2010 Can-Am DS70 ATV.

Shop Brake Lines for a 2010 Can-Am DS70 ATV.

Shop Brake Tools for a 2010 Can-Am DS70 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.