How to Bleed & Replace Brake Fluid on a 2006 Polaris Sportsman 700 EFI 4X4

Shop parts for a 2006 Polaris Sportsman 700 EFI 4X4 ATV.

This proprietary MotoSport guide walks you through safely flushing and bleeding the hydraulic brakes on a 2006 Polaris Sportsman 700 EFI 4X4. Follow each step carefully. If you’re uncomfortable with brake work, contact a professional mechanic.

Safety & prep

  • Work on a level surface with the engine off, key out, and the parking brake engaged.
  • Wear gloves & safety glasses. Brake fluid is corrosive to paint – protect plastics and finish.
  • Use only DOT 4 brake fluid unless your owner’s manual specifies otherwise. Do not mix DOT 5 silicone with DOT 3/4.
  • Have fresh brake fluid, clear tubing, a catch bottle, a wrench for bleeder nipples (usually 8mm or 10mm), rags, and a vacuum or pressure bleeder or a helper available.

Model notes for the 2006 Sportsman 700 EFI 4X4

  • The 2006 Sportsman 700 EFI uses hydraulic front and rear disc brakes with a single master cylinder/reservoir. There is no factory ABS on this model year.
  • Master cylinder reservoir is located near the handlebar area — check reservoir boot for cracks and ensure the cap diaphragm is intact before and after service.
  • Caliper bleeder screws are on the calipers mounted at the wheel hubs; front calipers sit on the lower fork legs, rear caliper on the swingarm/axle housing. Keep the machine stable when removing wheels or working at each caliper.
  • Replace worn pads or leaking calipers before bleeding. Bleeding will not fix mechanical leaks or worn components.

Step-by-step fluid replacement & bleeding

  1. Remove reservoir cap and diaphragm boot. Siphon or turkey-baste out most old fluid to lower the level below any sediment. Clean reservoir top area to avoid contamination.
  2. Top reservoir with fresh DOT 4 fluid to the recommended level. Keep cap off during the process but prevent dirt entry.
  3. Identify the bleed order: bleed the caliper farthest from the master cylinder first, then work progressively closer. Common order on this model: rear caliper (farthest), right front caliper, left front caliper (closest). If uncertain, follow the master cylinder to caliper distance rule.
  4. Attach clear tubing over the bleeder nipple and route into a catch bottle partially filled with clean fluid to prevent air re-entry. Crack the bleeder nipple about a quarter-turn.
  5. If using a helper: have them slowly pump the brake lever or pedal several times and hold it down. Open the bleeder nipple to let fluid/air escape until flow is steady and bubbles stop, then close the nipple before the helper releases the lever. Repeat until clear fluid with no bubbles flows, keeping reservoir topped up to avoid running dry.
  6. If using a vacuum or pressure bleeder: follow the tool instructions. Vacuum bleed at the caliper until clear fluid appears; for pressure systems, pressurize the reservoir per tool guidance and open bleeders sequentially until fluid runs clear.
  7. Work through each caliper in order, keeping reservoir full at all times. Running the master cylinder dry introduces air into the system and requires repeating the entire process.
  8. After the last caliper is bled, tighten bleeder nipples to the proper snugness (do not over-torque). Clean any spilled brake fluid from components immediately and rinse painted surfaces with water if contacted.
  9. Top the reservoir to the correct level, reinstall the diaphragm and cap, then test brake feel: firm lever or pedal with no sponginess. If it feels soft, repeat bleeding until firm.
  10. Road-test carefully at low speed to confirm braking performance. Recheck reservoir level and bleeder screw tightness after the test ride.

Tips & troubleshooting

  • If you see continuous air ingress or soft lever, inspect lines, fittings, banjo bolts, caliper pistons, and master cylinder for leaks or damaged seals.
  • Stubborn air may hide in ABS units or internal passages – since this model lacks ABS, persistent issues typically indicate a leak or failing master cylinder.
  • Replace the reservoir diaphragm and cap if they’re brittle; they prevent contamination and help maintain pressure balance.
  • Dispose of old brake fluid as hazardous waste. Never reuse.
  • Bleeder screw threads can be fragile on older calipers – back them out carefully and ensure threads are clean before torquing down.

Final checks

  • Confirm no leaks at bleeders, banjos, or calipers. Verify brake pads have adequate thickness after bleeding; replace if necessary.
  • Ensure brake lever/pedal returns smoothly and braking is consistent left-to-right and front-to-rear.
  • Record the service date and fluid type in maintenance logs for future reference.

MotoSport recommends using OEM-quality replacement parts and fresh DOT 4 fluid for reliable stopping power on your 2006 Polaris Sportsman 700 EFI 4X4. If you need parts specific to this MMY, visit the product page above to find compatible calipers, pads, hoses, and hardware.

Related Shopping Categories

Shop Brake Fluid for a 2006 Polaris Sportsman 700 EFI 4X4 ATV.

Shop Brake Bleeders for a 2006 Polaris Sportsman 700 EFI 4X4 ATV.

Shop Brake Pads for a 2006 Polaris Sportsman 700 EFI 4X4 ATV.

Shop Brake Lines for a 2006 Polaris Sportsman 700 EFI 4X4 ATV.

Shop Brake Tools for a 2006 Polaris Sportsman 700 EFI 4X4 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.