The Yamaha Bear Tracker 250: a dependable ATV renowned for its ruggedness and ease of use. But even the most reliable machines can experience hiccups. If you own or are considering purchasing a Bear Tracker 250, understanding its common issues can save you time, money, and frustration on the trails.

What's the Buzz About Bear Tracker 250 Issues?

The Bear Tracker 250, produced from 1999 to 2004, holds a special place in the hearts of ATV enthusiasts. Its simplicity makes it a great entry-level machine, and its durability is legendary. However, age can take its toll, and certain problem areas tend to surface more frequently than others. Recognizing these potential pitfalls allows you to proactively address them, ensuring your Bear Tracker remains a trusty companion for years to come.

Common Complaints: Diving Deep into Bear Tracker 250 Problems

Let's delve into the most common problems owners encounter with their Yamaha Bear Tracker 250s. We'll explore each issue in detail, providing possible causes and practical solutions to get you back on the trail.

The Dreaded Carburetor Clogs

One of the most frequent complaints centers around carburetor issues. The Bear Tracker 250 uses a Mikuni carburetor, a reliable unit, but susceptible to clogging, especially if the ATV sits unused for extended periods.

What's Happening?

Old fuel can break down and leave behind varnish and deposits that clog the carburetor's jets and passages. This restricts fuel flow, leading to:

  • Hard starting
  • Rough idling
  • Stalling
  • Poor performance, especially at higher RPMs

How to Fix It:

  1. Clean the Carburetor: This is often the first and most effective solution. Remove the carburetor, disassemble it carefully, and clean all the jets, passages, and bowl with carburetor cleaner. Use compressed air to ensure all debris is cleared.
  2. Replace the Fuel Filter: A clogged fuel filter can restrict fuel flow to the carburetor, exacerbating the problem. Replace the fuel filter regularly (at least once a year) to prevent this.
  3. Check the Fuel Lines: Inspect the fuel lines for cracks, kinks, or blockages. Replace any damaged or deteriorated lines.
  4. Consider a Carburetor Rebuild Kit: If cleaning doesn't solve the problem, a carburetor rebuild kit, containing new jets, gaskets, and other essential components, might be necessary.
  5. Fuel Stabilizer: If you plan on storing your Bear Tracker for an extended period, add a fuel stabilizer to the gasoline. This prevents the fuel from breaking down and forming deposits.

Electrical Gremlins: Lights Out and No Spark

Electrical problems can be frustrating to diagnose and repair. The Bear Tracker 250's electrical system is relatively simple, but age and exposure to the elements can lead to issues.

What's Happening?

  • Battery Problems: A weak or dead battery is a common culprit. Batteries lose their charge over time, especially if not properly maintained.
  • Faulty Stator: The stator generates the electricity needed to charge the battery and power the electrical system. A faulty stator can result in a dead battery and no spark.
  • Bad Ignition Coil: The ignition coil provides the high voltage needed to ignite the fuel-air mixture. A bad coil can prevent the engine from starting.
  • Wiring Issues: Corroded or damaged wiring can cause shorts, breaks, or poor connections, leading to a variety of electrical problems.
  • Faulty CDI Unit (Capacitor Discharge Ignition): This unit controls the timing and spark to the engine. If it goes bad, the engine will not run.

How to Fix It:

  1. Check the Battery: Test the battery voltage with a multimeter. If it's below 12.6 volts, charge the battery or replace it if it's not holding a charge.
  2. Inspect the Stator: Use a multimeter to test the stator's output. If it's not producing the correct voltage, the stator needs to be replaced.
  3. Test the Ignition Coil: Use a multimeter to test the ignition coil's resistance. If it's outside the specified range, the coil needs to be replaced.
  4. Check the Wiring: Inspect the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace any damaged wiring. Use dielectric grease on all electrical connections to prevent corrosion.
  5. Check the CDI Unit: This is best tested by swapping it with a known good unit.

Transmission Troubles: Shifting Woes and Slipping

The Bear Tracker 250 features a semi-automatic transmission, which means you still shift gears, but there's no clutch lever. This system is generally reliable, but problems can arise.

What's Happening?

  • Difficult Shifting: Shifting gears can become difficult or impossible if the shift linkage is worn, damaged, or improperly adjusted.
  • Slipping Transmission: The transmission may slip out of gear under load if the clutch plates are worn or the clutch adjustment is incorrect.
  • Damaged Gears: In severe cases, the gears themselves can become damaged due to wear, abuse, or lack of lubrication.

How to Fix It:

  1. Adjust the Shift Linkage: Ensure the shift linkage is properly adjusted according to the manufacturer's specifications.
  2. Inspect the Shift Linkage: Check for worn or damaged components in the shift linkage, such as ball joints and rods. Replace any worn or damaged parts.
  3. Adjust the Clutch: Adjust the clutch according to the manufacturer's specifications. This involves adjusting the clutch pushrod.
  4. Replace the Clutch Plates: If the clutch is slipping, the clutch plates may be worn and need to be replaced.
  5. Inspect the Gears: In severe cases, you may need to disassemble the transmission and inspect the gears for damage. Replace any damaged gears.
  6. Check Oil Level: Ensure the engine oil is at the correct level and is the correct type.

Suspension Sag: A Bumpy Ride

The Bear Tracker 250's suspension is designed for comfort and handling. Over time, the suspension components can wear out, leading to a saggy ride and reduced performance.

What's Happening?

  • Worn Shocks: The shocks can lose their damping ability, resulting in a bouncy or uncontrolled ride.
  • Sagging Springs: The springs can lose their tension, causing the ATV to sit lower and bottom out more easily.
  • Worn Bushings: Worn bushings in the suspension arms can cause play and instability.

How to Fix It:

  1. Replace the Shocks: If the shocks are worn, replacing them with new ones is the best solution.
  2. Replace the Springs: If the springs are sagging, replacing them with new ones will restore the ride height and improve handling.
  3. Replace the Bushings: Replace any worn bushings in the suspension arms to eliminate play and improve stability.
  4. Check Tire Pressure: Ensure the tires are inflated to the proper pressure.

Brake Blues: Squealing and Poor Stopping Power

Reliable brakes are essential for safety. The Bear Tracker 250 uses drum brakes, which require regular maintenance to ensure optimal performance.

What's Happening?

  • Worn Brake Shoes: The brake shoes can wear down over time, reducing braking power.
  • Contaminated Brake Shoes: Oil, grease, or dirt can contaminate the brake shoes, reducing their effectiveness.
  • Sticking Brakes: The brake shoes can stick to the drums, causing the brakes to drag or squeal.
  • Cable Issues: The brake cables can stretch or become corroded, leading to poor brake response.

How to Fix It:

  1. Replace the Brake Shoes: If the brake shoes are worn, replace them with new ones.
  2. Clean the Brake Drums and Shoes: Clean the brake drums and shoes with brake cleaner to remove any contamination.
  3. Lubricate the Brake Linkage: Lubricate the brake linkage to ensure smooth operation.
  4. Adjust the Brakes: Adjust the brakes according to the manufacturer's specifications.
  5. Replace the Brake Cables: If the brake cables are stretched or corroded, replace them with new ones.

Preventive Maintenance: The Key to a Long-Lasting Bear Tracker

The best way to avoid these problems is to perform regular preventive maintenance. Here's a checklist of essential maintenance tasks:

  • Change the Oil Regularly: Change the engine oil and filter every 100 hours of use or at least once a year.
  • Clean the Air Filter: Clean the air filter regularly to prevent dirt and debris from entering the engine.
  • Lubricate the Chassis: Lubricate the chassis components, such as the suspension and steering, regularly to prevent wear and corrosion.
  • Check the Tire Pressure: Check the tire pressure regularly and inflate the tires to the proper pressure.
  • Inspect the Brakes: Inspect the brakes regularly and adjust or replace them as needed.
  • Check the Battery: Check the battery voltage regularly and charge or replace the battery as needed.
  • Use Fuel Stabilizer: If you plan on storing your Bear Tracker for an extended period, add a fuel stabilizer to the gasoline.

Frequently Asked Questions

  • Why is my Bear Tracker 250 hard to start?
    • Hard starting is often caused by a clogged carburetor, a weak battery, or a faulty ignition coil. Cleaning the carburetor, charging the battery, or replacing the ignition coil may solve the problem.
  • My Bear Tracker 250 is running rough. What could be the cause?
    • Rough running can be caused by a clogged carburetor, a dirty air filter, or a faulty spark plug. Cleaning the carburetor, replacing the air filter, or replacing the spark plug may resolve the issue.
  • Why is my Bear Tracker 250 slipping out of gear?
    • Slipping out of gear is often caused by worn clutch plates or an improperly adjusted clutch. Adjusting the clutch or replacing the clutch plates may fix the problem.
  • My Bear Tracker 250's brakes are squealing. What should I do?
    • Squealing brakes can be caused by worn brake shoes, contaminated brake shoes, or sticking brakes. Cleaning the brake drums and shoes, lubricating the brake linkage, or replacing the brake shoes may solve the problem.
  • Where can I find parts for my Yamaha Bear Tracker 250?
    • You can find parts for your Yamaha Bear Tracker 250 at your local Yamaha dealer, online retailers specializing in ATV parts, or through online auction sites.

Keep Your Bear Tracker Roaring

By understanding the common problems that can plague the Yamaha Bear Tracker 250 and implementing a regular maintenance routine, you can keep your ATV running smoothly and reliably for years to come. Don't let minor issues turn into major headaches – proactive care is the key to a long and enjoyable riding experience.