The Arctic Cat Alterra 600, introduced as a mid-size ATV option, aims to blend affordability with off-road capability. While many owners praise its performance and handling, like any machine, it isn't without its quirks. Understanding the common problems associated with the Alterra 600 can help you make an informed purchase decision, prepare for potential maintenance, and keep your ATV running smoothly for years to come.

So, What's the Buzz (and the Bumps) About?

Before we dive deep, let's acknowledge that every ATV model has its share of issues. The Alterra 600 is no exception. However, knowing what to expect can help you mitigate problems before they become major headaches. We'll cover some frequently reported issues, along with potential solutions.

The Dreaded Stalling Issue: Why Does My Alterra 600 Keep Dying?

One of the most common complaints about the Arctic Cat Alterra 600 is stalling, particularly at low speeds or idle. This can be incredibly frustrating, especially when navigating tricky terrain or waiting at a trail intersection. Several factors can contribute to this issue:

  • Fuel System Problems: This is often the prime suspect. A dirty fuel filter, clogged fuel injectors, or a faulty fuel pump can restrict fuel flow, leading to stalling. Fuel quality can also play a role; using low-grade fuel or fuel that has been sitting for an extended period can cause problems.
  • Idle Speed Adjustment: The idle speed might be set too low. The Alterra 600's engine requires a certain RPM to maintain stable operation at idle.
  • Throttle Position Sensor (TPS) Issues: The TPS tells the engine control unit (ECU) the position of the throttle. If it's faulty or miscalibrated, it can send incorrect information, leading to stalling.
  • Air Intake Obstructions: A dirty air filter or obstructions in the air intake can restrict airflow, disrupting the air-fuel mixture and causing stalling.
  • Electrical Issues: While less common, electrical problems like a loose connection or a faulty sensor can also contribute to stalling.

What to do about it:

  1. Check the Fuel: Drain the old fuel and replace it with fresh, high-quality fuel. Consider adding a fuel stabilizer if the ATV will be stored for an extended period.
  2. Inspect and Replace the Fuel Filter: A clogged fuel filter is a common culprit. Replace it with a new one.
  3. Clean the Fuel Injectors: Fuel injectors can become clogged over time. You can try using a fuel injector cleaner additive or have them professionally cleaned.
  4. Adjust the Idle Speed: Consult your owner's manual for the correct idle speed setting and adjust it accordingly.
  5. Check the TPS: Use a multimeter to check the TPS voltage. If it's out of spec, it may need to be replaced.
  6. Inspect the Air Filter: Clean or replace the air filter regularly.
  7. Check for Loose Connections: Inspect all electrical connections related to the fuel system and ignition system.

Difficulty Starting: When Your Alterra 600 Refuses to Wake Up

Another prevalent issue is difficulty starting, particularly in cold weather. This can be caused by several factors, often overlapping with the stalling issues mentioned above.

  • Weak Battery: A weak or discharged battery is a common cause of starting problems, especially in cold weather. Batteries lose capacity in cold temperatures, making it harder to crank the engine.
  • Faulty Starter Motor: The starter motor might be failing or worn out.
  • Spark Plug Issues: A fouled or worn spark plug can prevent the engine from starting.
  • Fuel System Problems (Again!): Similar to the stalling issue, fuel delivery problems can also make starting difficult.
  • Compression Issues: Low compression in the engine cylinders can make it difficult to start.

What to do about it:

  1. Check the Battery: Ensure the battery is fully charged and in good condition. Consider using a battery tender to maintain the charge during periods of inactivity.
  2. Test the Starter Motor: Have the starter motor tested to ensure it's functioning properly.
  3. Inspect the Spark Plug: Check the spark plug for fouling or wear. Replace it if necessary.
  4. Check the Fuel System: As mentioned above, inspect the fuel filter, fuel injectors, and fuel pump.
  5. Check Compression: If you suspect low compression, have a mechanic perform a compression test.

Suspension Woes: A Bumpy Ride?

Some owners have reported issues with the Alterra 600's suspension, particularly with the shocks being too stiff or not providing adequate damping. This can result in a bumpy and uncomfortable ride, especially on rough terrain.

  • Factory Shock Settings: The factory shock settings may not be ideal for all riders or riding conditions.
  • Shock Wear: Over time, the shocks can wear out and lose their damping ability.
  • Incorrect Spring Preload: The spring preload may be set incorrectly, causing the suspension to be too stiff or too soft.

What to do about it:

  1. Adjust Shock Settings: Experiment with the shock settings to find the optimal settings for your weight and riding style.
  2. Consider Aftermarket Shocks: If the factory shocks are not performing adequately, consider upgrading to aftermarket shocks.
  3. Adjust Spring Preload: Consult your owner's manual for instructions on adjusting the spring preload.

Overheating: Keeping Your Cool

While not as widespread as some other issues, some owners have reported overheating problems with the Alterra 600, especially during strenuous use or in hot weather.

  • Coolant Level: Low coolant level can cause overheating.
  • Radiator Obstruction: A clogged radiator can restrict airflow and reduce cooling efficiency.
  • Faulty Thermostat: A faulty thermostat can prevent the engine from cooling properly.
  • Water Pump Issues: A failing water pump can reduce coolant flow and cause overheating.

What to do about it:

  1. Check Coolant Level: Ensure the coolant level is at the proper level.
  2. Clean the Radiator: Clean the radiator fins to remove any debris that may be obstructing airflow.
  3. Test the Thermostat: Have the thermostat tested to ensure it's functioning properly.
  4. Inspect the Water Pump: Inspect the water pump for leaks or other signs of damage.

Electrical Gremlins: When Things Go Haywire

Electrical issues can be particularly frustrating, as they can be difficult to diagnose. Some owners have reported problems with the Alterra 600's electrical system, such as lights not working, gauges malfunctioning, or the ATV not starting.

  • Loose Connections: Loose or corroded electrical connections are a common cause of electrical problems.
  • Faulty Wiring: Damaged or frayed wiring can cause shorts or other electrical issues.
  • Faulty Sensors: Faulty sensors can send incorrect information to the ECU, leading to various problems.
  • Fuse Issues: Blown fuses can interrupt electrical circuits.

What to do about it:

  1. Check Connections: Inspect all electrical connections for looseness or corrosion. Clean and tighten any loose connections.
  2. Inspect Wiring: Inspect the wiring harness for damage or fraying. Repair or replace any damaged wiring.
  3. Check Fuses: Check all fuses to ensure they are intact. Replace any blown fuses with the correct amperage rating.
  4. Consult a Mechanic: If you are unable to diagnose the electrical problem, consult a qualified mechanic.

Rust and Corrosion: The Unseen Enemy

ATVs are often exposed to harsh conditions, including mud, water, and salt. This can lead to rust and corrosion, which can damage various components.

  • Lack of Maintenance: Neglecting to wash and lubricate the ATV regularly can accelerate rust and corrosion.
  • Exposure to Salt: Riding in areas with salt (e.g., near the ocean or on salted roads) can significantly increase the risk of corrosion.

What to do about it:

  1. Wash Regularly: Wash the ATV thoroughly after each ride, especially if it has been exposed to mud, water, or salt.
  2. Apply Corrosion Protection: Apply a corrosion protection spray to exposed metal surfaces.
  3. Lubricate Regularly: Lubricate all moving parts regularly to prevent rust and corrosion.
  4. Store Properly: Store the ATV in a dry and protected location.

General Maintenance: The Key to Longevity

Many of the problems mentioned above can be prevented with regular maintenance. Following the manufacturer's recommended maintenance schedule is crucial for keeping your Alterra 600 running smoothly.

  • Oil Changes: Change the engine oil and filter regularly.
  • Air Filter Cleaning: Clean or replace the air filter regularly.
  • Spark Plug Replacement: Replace the spark plug at the recommended intervals.
  • Coolant Flush: Flush and replace the coolant at the recommended intervals.
  • Brake Inspection: Inspect the brakes regularly and replace them as needed.
  • Tire Pressure: Maintain proper tire pressure.

Frequently Asked Questions

  • Why does my Alterra 600 stall when I come to a stop? This could be due to a low idle speed, a dirty fuel filter, or a faulty throttle position sensor. Check these components and adjust or replace them as needed.

  • My Alterra 600 is hard to start in cold weather. What can I do? Ensure your battery is fully charged and in good condition. Consider using a battery tender and checking the spark plug.

  • Are aftermarket parts readily available for the Alterra 600? Yes, a wide range of aftermarket parts, including shocks, tires, and accessories, are available for the Alterra 600.

  • How often should I change the oil in my Alterra 600? Refer to your owner's manual for the recommended oil change interval, but generally, every 50-100 hours of operation is a good guideline.

  • My Alterra 600 is overheating. What should I check first? Check the coolant level and the radiator for obstructions. Also, make sure the fan is running.

The Bottom Line

The Arctic Cat Alterra 600 can be a reliable and enjoyable ATV, but it's essential to be aware of potential issues. By understanding these common problems and performing regular maintenance, you can keep your Alterra 600 running smoothly for years to come and minimize unexpected breakdowns. Remember, proactive maintenance is always cheaper and less frustrating than reactive repairs.