How to Bleed and Replace Brake Fluid on a 2013 Arctic Cat 300
Shop parts for a 2013 Arctic Cat 300 ATV.
This MotoSport exclusive service guide covers step-by-step flushing and bleeding of the hydraulic brake system on a 2013 Arctic Cat 300 ATV, tools & supplies, safety notes specific to the MMY, troubleshooting, and model-specific reminders. Follow these instructions carefully to maintain safe braking performance.
Overview & model notes
- The 2013 Arctic Cat 300 uses a sealed hydraulic brake system with a single front master cylinder and a rear master cylinder dependent on model/configuration. Brakes are hydraulic; confirm whether your unit has front and rear discs or a rear drum on your specific trim. Consult your owner's manual for confirmation.
- MotoSport recommends using fresh, high-quality DOT brake fluid. Many Arctic Cat 300s specify DOT 4; always verify the type stamped on the master cylinder cap or in the owner's manual before adding fluid. Using the wrong fluid can damage seals.
- Brake fluid is hygroscopic — it absorbs water. Replace fluid every 1-2 years or sooner if contamination, spongy lever/pedal feel, or corrosion is present.
- Brake components on the Arctic Cat 300 are compact; protect painted surfaces from spilled fluid and avoid overfilling reservoirs. Keep the ATV level on a stable lift or stands when working.
Tools & supplies
- DOT 4 brake fluid (confirm DOT rating for your specific unit)
- Clear plastic tubing that fits snugly over bleeder nipples
- Brake bleeder wrench or appropriate sized open-end wrench
- Turkey baster or fluid syringe for removing old fluid from reservoirs
- Catch bottle for old fluid; brake fluid is corrosive — dispose properly
- Clean rags, gloves, safety glasses
- Floor jack or ATV lift and stands to level the machine
- Assistant for power-bleeding method, or a one-person vacuum/pressure bleeder
Preparation
- Park the ATV on level ground, kill the engine, remove the key, and block wheels. Use an ATV lift or stands so wheels can turn freely if required.
- Clean around master cylinder reservoir caps and bleeder nipples to prevent dirt entry. Wear gloves and eye protection.
- Open the master cylinder reservoirs (front and rear as applicable). Use a clean rag to wipe. Remove as much old fluid from the reservoirs with a turkey baster or syringe to minimize contamination when you begin the flush.
- Inspect lines, calipers, and fittings for leaks, cracked hoses, or corroded fittings. Replace damaged parts before bleeding.
Basic brake fluid replacement & bleed (two-person method)
- Top the reservoir with fresh DOT 4 fluid until just below the fill line. Keep caps loose but covered to avoid contamination.
- Start with the brake circuit furthest from the master cylinder. On many ATVs this is the right front, then left front, then rear. For the Arctic Cat 300, confirm routing visually; if uncertain, start with the front calipers then rear.
- Place clear tubing over the bleeder nipple and the other end into a catch bottle partially filled with clean brake fluid to prevent air re-entry.
- Have your helper slowly depress the brake lever or pedal several times then hold it down. While held, you open the bleeder nipple a 1/4 to 1/2 turn to allow fluid and air to flow out. Close the nipple before your helper releases the lever. Repeat until no air bubbles appear in the tubing and the fluid runs clear.
- Keep the reservoir topped up between cycles to prevent drawing air into the system. Never let the reservoir run dry.
- Repeat for each caliper/bleeder in sequence, moving progressively closer to the master cylinder.
- When finished, tighten bleeder nipples to the proper snugness, wipe all fittings, and reinstall reservoir caps. Pump the brake lever/pedal to check firmness. If spongy, repeat bleeding.
One-person vacuum or pressure bleeder method
Using a handheld vacuum bleeder or bench-style pressure bleeder simplifies one-person bleeding:
- Attach device according to manufacturer instructions to the master cylinder cap or bleeder port adapter.
- Operate device to draw fluid from caliper bleeders until clear, or pressurize reservoir to push fresh fluid through lines. Follow device-specific safety precautions.
- Maintain reservoir level and finish with firm lever/pedal feel checks.
Flush-only method (if master cylinders are suspected contaminated)
- Remove as much old fluid from reservoirs as possible.
- Fill with fresh fluid and perform bleeding until clear fluid exits. Repeat full reservoir replacement as necessary to ensure most old fluid is removed.
Post-bleed checks & torque
- Confirm lever and pedal feel are firm. If spongy, repeat bleeding or inspect for leaks/air entry points.
- Check bleeder nipple and banjo bolt torque to factory spec if known; snug all fittings. Avoid overtightening to prevent thread or fitting damage.
- Ride slowly in a safe area to verify braking performance before normal use.
- Clean any spilled brake fluid immediately from painted plastics or metal to prevent damage. Brake fluid will strip paint and corrosion protection.
Troubleshooting
- Persistent spongy lever after multiple bleeds: inspect master cylinder seals, caliper pistons, hoses; replace cracked hoses or leaking components. Water in fluid may require complete system overhaul.
- No fluid flow from bleeder: check for clogged lines, seized caliper bleeder screw, or collapsed hose. Apply penetrating oil and gently free the screw; replace if rounded or seized.
- Brake drag after bleeding: ensure caliper pistons were not over-extended. Check for pinched hoses or incorrect reassembly.
Safety & disposal
- Brake fluid is toxic and corrosive. Wear gloves and eye protection. Avoid skin contact and never mix used fluid with fresh fluid.
- Dispose of used brake fluid at a proper hazardous waste facility or according to local regulations. Do not pour down drains or on the ground.
Model-specific reminders for the 2013 Arctic Cat 300 owner
- Confirm brake fluid type for your specific MMY before topping up. Many Arctic Cat 300 service specs call for DOT 4, but double-check the master cylinder cap marking or owner's manual.
- Smaller reservoir capacities mean topping up frequently during bleeding to avoid drawing air into the system.
- If your unit has a rear drum or mechanical parking brake variation, that circuit will not be part of the hydraulic bleed procedure. Inspect mechanical linkages for wear and proper adjustment during the service.
- Parts such as bleed screws, banjo bolts, and caliper seals are common wear items on older ATVs; MotoSport stocks replacement components specific to the 2013 Arctic Cat 300 if you need them after inspection.
When to seek professional service
If you find corroded lines, seized calipers, leaking master cylinders, or repeated air entry you cannot eliminate, stop and have a qualified technician perform repairs. Compromised brake components can render the ATV unsafe.
By following this MotoSport guide you can safely replace and bleed brake fluid on your 2013 Arctic Cat 300, restore braking performance, and know which model-specific checks to prioritize after service.
Related Shopping Categories
Shop Brake Fluid for a 2013 Arctic Cat 300 ATV.
Shop Brake Bleeders for a 2013 Arctic Cat 300 ATV.
Shop Brake Pads for a 2013 Arctic Cat 300 ATV.
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Shop Brake Tools for a 2013 Arctic Cat 300 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.