How to Bleed and Replace Brake Fluid on a 2017 Yamaha Kodiak 700 4X4 EPS IRS
Shop parts for a 2017 Yamaha Kodiak 700 4X4 EPS IRS ATV.
This MotoSport-exclusive guide walks you through flushing and bleeding the hydraulic brakes on a 2017 Yamaha Kodiak 700 4X4 EPS IRS. Follow these steps to keep braking crisp and safe. This procedure assumes basic mechanical skill, common tools, and a helper or a vacuum/pressure bleeder.
What you need
- Yamaha-approved brake fluid DOT 4 (use fresh, unopened fluid)
- Clear plastic tubing and a catch bottle
- Wrench for bleeder nipple (typically 8 mm or 10 mm) confirm on your machine
- Rubber gloves, eye protection
- Clean rags and isopropyl alcohol for cleaning
- Hydraulic vacuum or pressure bleeder (optional but speeds work)
- Zip ties or clamp to keep tubing on nipple
- Torque wrench (recommended for fasteners on calipers, wheels)
Model-specific notes for the 2017 Kodiak 700 4X4 EPS IRS
- The Kodiak 700 EPS IRS does not have ABS; its braking system is conventional hydraulic disc front and rear. Bleed each circuit separately.
- Electronic Power Steering (EPS) does not share brake fluid but avoid powering EPS while working around steering linkages; secure the machine in park and key off when doing brake work unless otherwise directed.
- Independent Rear Suspension (IRS) layout can make access to the rear caliper bleeder nipple tighter; plan jack or stand placement to give clearance.
- Yamaha recommends DOT 4 fluid for brake performance and corrosion protection. Do not mix DOT types beyond manufacturer allowances.
- Brake fluid will damage painted surfaces and plastics – wipe spills immediately and protect the bodywork.
Preparation
- Park on a level surface, engage parking brake, and place the machine on a solid stand to access wheels and calipers safely.
- Remove wheels if needed for easier access to calipers & bleeder valves; chock wheels if not removing.
- Clean reservoir cap area to prevent contamination. Remove cap and diaphragm; keep the reservoir topped with fresh DOT 4 fluid during the process to avoid introducing air.
- Inspect brake lines, hoses, and calipers for leaks, damage, or seized slide pins before bleeding.
Bleeding order and rationale
Bleed the furthest caliper from the master cylinder first, then progress to the nearest. For typical Kodiak layouts:
- Rear caliper (farthest) first
- Front caliper(s) next, working from the caliper farthest from the master cylinder to the nearest
This removes trapped air systematically from the system.
Step-by-step bleed using a helper (manual pump method)
- Top up the master cylinder reservoir with DOT 4 fluid. Keep the cap loosely installed between cycles to reduce contamination.
- Attach clear tubing to the bleeder nipple and route into a catch bottle partially filled with fresh fluid to avoid drawing air back into the system.
- Have your helper slowly depress the brake lever or pedal several times and hold it to the floor. While held, open the bleeder nipple about a quarter turn. Fluid and bubbles will flow into the tubing. Close the nipple before the helper releases the lever/pedal. Repeat until only clear, bubble-free fluid appears.
- After each cycle, top the reservoir to keep it above the minimum level. Never let it run dry during the procedure.
- Move to the next caliper following the bleeding order. Repeat until all calipers show clean, bubble-free fluid.
- Tighten bleeder nipples to torque spec if known, or snug securely. Wipe all joints clean.
Step-by-step with vacuum or pressure bleeder
- Fill the master reservoir with DOT 4 fluid.
- Attach the vacuum pump hose to the bleeder nipple or connect the pressure bleeder to the master cylinder reservoir per the tool instructions.
- If using vacuum on the nipple, pull vacuum while the master is topped; open nipple and let fluid run until clear and bubble-free. Close nipple before releasing vacuum.
- If using a pressure bleeder on the reservoir, pressurize to the recommended setting and open bleeder nipples one at a time until fluid clears.
- Top off reservoir as needed and ensure all nipples are tightened when finished.
Replacing brake fluid (full flush)
- To fully replace old fluid, continue bleeding until the fluid exiting the bleeder is the new clear DOT 4 fluid and the reservoir has been drained and refilled at least once. For a full flush, repeatedly draw off old fluid while keeping the reservoir topped with new fluid until all fluid in the system is replaced.
- Dispose of old brake fluid as hazardous waste per local regulations.
Wrap-up & safety checks
- Ensure reservoir is filled to the correct level, reinstall diaphragm and cap, and clean any spilled fluid.
- Pump the brake lever/pedal several times to build firm pressure. Confirm no sponginess remains.
- Check for leaks at bleeder nipples, hose connections, and caliper fittings after a short test ride at low speed in a safe area.
- Retorque any wheel fasteners removed during the job to Yamaha specifications.
Maintenance interval guidance
Change brake fluid every two years or sooner if exposed to moisture or heavy use. Fresh DOT 4 fluid helps maintain braking performance and protects internal components from corrosion.
Troubleshooting
- If pressure is still soft after bleeding, check for collapsed hoses, internal master cylinder leaks, or air trapped in an ABS unit (not applicable on many Kodiak models without ABS).
- Persistent leakage at a caliper or hose requires replacement of the faulty part; do not attempt to ride until repaired.
Perform brake work with care. If unsure about any step, consult a certified technician or MotoSport service partner.
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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.