How to Bleed & Replace Brake Fluid on a 2016 Yamaha Kodiak 700 4X4 IRS

Shop parts for a 2016 Yamaha Kodiak 700 4X4 IRS ATV.

This MotoSport-exclusive guide walks you through bleeding and replacing the brake fluid on a 2016 Yamaha Kodiak 700 4X4 IRS. Procedures cover the front dual-caliper system and the single rear caliper with the independent rear suspension (IRS) layout. Follow these steps carefully to maintain safe, consistent braking.

Safety & prep

  • Work on a level surface with the engine off, key removed, and parking brake applied.
  • Use DOT 4 brake fluid only; Yamaha recommends DOT 4 for the Kodiak 700. Do not mix with DOT 5 (silicone).
  • Wear nitrile gloves and eye protection; brake fluid damages paint & plastics.
  • Have a catch container, clear tubing, new DOT 4 fluid, a wrench set (8mm/10mm common), a turkey-baster or fluid syringe, rags, and a torque wrench handy.
  • Inspect hoses, lines, calipers & master cylinder for leaks or deterioration before bleeding. Replace any damaged components.

What you'll replace

  • Complete fluid change in the master cylinder reservoir and calipers — front and rear.
  • Bleed air from both front calipers and the rear caliper. The Kodiak 700 has two front bleed nipples (one per caliper) and one rear bleed nipple.

Step-by-step procedure

1. Access reservoirs

Locate the front brake master cylinder/reservoir on the right handlebar and the rear reservoir near the rear brake master cylinder on the right rear frame area. Clean around the caps to prevent contamination. Remove caps and diaphragms carefully.

2. Remove old fluid from reservoirs

Use a syringe or turkey-baster to remove as much old fluid as possible from each reservoir. Wipe out residue with a clean lint-free cloth. Do not allow dirt into the system.

3. Refill with new DOT 4 fluid

Top each reservoir with fresh DOT 4 fluid to the indicated level. Keep the cap loosely threaded to minimize contamination while working.

4. Bleeding order & general approach

Bleed from the caliper farthest from the master cylinder first, moving to the nearest. For the Kodiak 700 that typically means:

  1. Rear caliper (single) — bleed first if its reservoir is shared or in parallel with master system design.
  2. Front left caliper — bleed next if it is farther from the master compared to front right.
  3. Front right caliper (closest) — bleed last.

Use one of these methods: manual two-person pump-and-hold, or one-person vacuum or pressure bleeder. MotoSport technicians recommend a vacuum or pressure bleeder for cleaner, faster results.

5. Bleeding with a one-person vacuum tool

  1. Attach a clear tube from the caliper bleed nipple to a catch bottle partially filled with brake fluid (prevents air backflow).
  2. Set vacuum tool on the nipple — pull steady vacuum.
  3. Have a helper slowly squeeze the brake lever/pedal 3-5 times, then hold the lever/pedal down. Open the bleed nipple to allow fluid/air to escape, then close it before the lever/pedal is released. Repeat until no bubbles are present in the tube and clean fluid flows.
  4. Keep the master reservoir topped during the entire process to avoid drawing air into the system.

6. Bleeding with a two-person method

  1. Attach clear tubing to the bleed nipple and submerge the other end in fluid inside a catch bottle.
  2. Helper presses the brake lever/pedal several times and then holds pressure.
  3. Operator opens the bleed nipple slightly to let fluid and air escape, then closes it before the helper releases pressure. Repeat until no air appears.
  4. Top off reservoir as needed between cycles.

7. Sequence specifics for Kodiak 700 4X4 IRS

  • Confirm which reservoir feeds which circuit on your machine (visual inspection). If the machine uses separate front/rear reservoirs, bleed rear first then front as listed above.
  • If the front has two calipers fed by a common master cylinder, bleed the outside/farthest caliper first, then the other front caliper; finish by re-checking the front master reservoir level.

8. Final checks & torque

  • After bleeding each caliper, torque the bleed nipple to manufacturer spec if applicable (typically light torque; check service manual for exact values). Wipe off excess fluid immediately.
  • Ensure caps and diaphragms on reservoirs are clean & seated properly to keep contaminants out.
  • Pump the brake lever/pedal to build firm pressure. If lever feels spongy, re-bleed until firm.
  • Test brakes at low speed in a safe area before normal riding.

Important model-specific notes for the 2016 Kodiak 700 4X4 IRS

  • IRS chassis routing: Brake line routing on IRS Kodiak models can be slightly different than solid-axle models. Inspect flexible hoses near suspension linkages for chafing during full suspension travel and replace hoses that show wear.
  • Parking brake/mechanical linkage: Some Kodiak 700s use a mechanical parking brake on the rear; its adjustment can affect rear brake travel. Verify parking brake is released and properly adjusted before final bleed.
  • ABS & electronics: The 2016 Kodiak 700 4X4 IRS generally does not have ABS. If your unit has aftermarket ABS or traction controls, follow manufacturer instructions — those systems may require specialized bleed procedures.
  • Reservoir caps & diaphragms: Replace cracked or degraded caps/diaphragms to avoid moisture ingress. Silicone or non-specified fluids will harm seals.
  • Storage & seasonal care: If storing your Kodiak, change brake fluid every 1-2 years to limit moisture absorption that can lower boiling point and cause corrosion.

Troubleshooting

  • Persistent spongy lever/pedal: Re-bleed; inspect master cylinder seals, caliper pistons, and flexible hoses for internal collapse or contamination.
  • Visible leaks: Replace the leaking part immediatelydo not ride with a leaking brake system.
  • Brake drag after bleeding: Check caliper pistons to ensure they return fully; clean slider pins and lubricate per Yamaha spec.

Maintenance tips

  • Always top off with fresh DOT 4 from a sealed container; use small containers to avoid moisture pickup.
  • Record fluid change dates and odometer hours; schedule replacement every 1-2 years depending on usage.
  • Keep a small brake-fluid spill kit in your shop to neutralize and clean spills immediately.

Following this MotoSport guide will keep your 2016 Yamaha Kodiak 700 4X4 IRS braking performance reliable and safe. If you're unsure about any step, have a qualified technician inspect the system.

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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.