Feeling like your Can-Am Outlander 570 is a little sluggish off the line? You're not alone. Many riders have experienced acceleration issues with this popular ATV, ranging from a mild hesitation to a complete lack of power. Understanding the potential causes and knowing where to start troubleshooting can save you time, money, and frustration, getting you back on the trails sooner.

Why is My Outlander 570 Acting Like a Turtle?

Let's face it, a slow-accelerating ATV is no fun. The Outlander 570 is designed to be a capable machine, so when it's not performing as expected, it's time to investigate. Several factors can contribute to poor acceleration, and often, it's a combination of things working together. Here's a breakdown of the most common culprits:

  • Fuel System Foibles: Fuel is the lifeblood of your engine. If it's not getting enough, or if it's contaminated, performance will suffer.
  • Air Intake Issues: The engine needs clean air to burn fuel efficiently. Restrictions in the air intake can choke the engine and reduce power.
  • Spark Plugs and Ignition: A weak spark means incomplete combustion, leading to poor acceleration and potential misfires.
  • CVT Clutch Concerns: The Continuously Variable Transmission (CVT) clutch is responsible for transferring power from the engine to the wheels. If it's worn or malfunctioning, it can significantly impact acceleration.
  • Engine Health: Internal engine problems, like low compression, can also contribute to a lack of power.
  • Sensor Sensitivities: Modern ATVs rely on sensors to monitor engine performance. Faulty sensors can send incorrect data to the ECU, leading to poor running conditions.

Fuel System: From Tank to Throttle Body

A healthy fuel system is crucial for optimal performance. Here's what to check:

  • Fuel Quality: Start with the basics. Old, stale fuel can cause all sorts of problems. Drain the tank and refill with fresh, high-quality gasoline. Consider adding a fuel stabilizer, especially if the ATV sits for extended periods.
  • Fuel Filter: A clogged fuel filter restricts fuel flow. It's a cheap and easy part to replace. Locate the fuel filter (usually in the fuel line or inside the fuel tank) and replace it with a new one.
  • Fuel Pump: The fuel pump delivers fuel to the engine. A weak or failing fuel pump won't provide enough pressure, leading to poor acceleration, especially under load. You can test the fuel pump pressure using a fuel pressure gauge. The service manual will specify the correct pressure range.
  • Fuel Injector(s): Clogged fuel injectors can disrupt the fuel spray pattern, leading to incomplete combustion. Consider using a fuel injector cleaner additive. If the problem persists, the injectors may need to be professionally cleaned or replaced.
  • Throttle Body: The throttle body controls the amount of air entering the engine. Carbon buildup can restrict airflow and affect throttle response. Clean the throttle body with a throttle body cleaner, following the product instructions.

Air Intake: Let the Engine Breathe

Restrictions in the air intake can starve the engine of oxygen, leading to poor performance.

  • Air Filter: This is the first line of defense against dirt and debris. A dirty or clogged air filter significantly restricts airflow. Inspect the air filter regularly and clean or replace it as needed.
  • Air Intake Boot: Check the air intake boot for cracks or leaks. These leaks can allow unmetered air into the engine, causing it to run lean and affecting performance.
  • Air Box: Inspect the air box for any obstructions or debris. Make sure the air box drain is clear.

Spark Plugs and Ignition: Lighting the Fire

A healthy ignition system is essential for igniting the air-fuel mixture.

  • Spark Plugs: Inspect the spark plugs for wear, fouling, or damage. Replace them if necessary. Ensure you use the correct spark plug type and gap specified in the owner's manual.
  • Spark Plug Wires: Check the spark plug wires for damage or corrosion. Replace them if they are cracked or worn.
  • Ignition Coil: A weak ignition coil can produce a weak spark. You can test the ignition coil using a multimeter to check its resistance.
  • Stator and Trigger Coil: These components generate the electrical signal for the ignition system. Failure of these parts can cause intermittent or complete loss of spark. Testing usually requires specialized equipment.

CVT Clutch: Power Transfer Troubles

The CVT clutch is a complex system responsible for transferring power from the engine to the wheels. Problems with the CVT clutch are a common cause of acceleration issues.

  • Worn Belt: The CVT belt is a wear item and needs to be replaced periodically. A worn belt can slip, reducing power transfer and causing poor acceleration. Inspect the belt for wear, cracks, or fraying. Measure the belt width and compare it to the specifications in the service manual.
  • Dirty or Sticky Clutch Components: Dirt, grease, or debris can cause the clutch components to stick or bind, affecting performance. Clean the clutch components with a suitable cleaner, following the service manual instructions.
  • Worn Clutch Weights or Rollers: The clutch weights or rollers are responsible for engaging and disengaging the clutch. Worn weights or rollers can cause the clutch to engage improperly, leading to poor acceleration. Inspect the weights or rollers for wear or damage.
  • Clutch Springs: The clutch springs provide the necessary tension for the clutch to operate correctly. Weak or broken springs can affect clutch engagement and performance.
  • Proper Clutch Alignment: Misalignment of the clutch components can cause excessive belt wear and poor performance.

Engine Health: Internal Combustion Concerns

Internal engine problems can also contribute to a lack of power.

  • Compression Test: A compression test can reveal problems with the piston rings, valves, or cylinder head. Low compression indicates a loss of sealing, which reduces engine power.
  • Valve Adjustment: Incorrect valve clearances can affect engine performance. Check and adjust the valve clearances according to the service manual specifications.
  • Engine Oil: Use the correct type and weight of engine oil. Low oil level or contaminated oil can also affect engine performance.

Sensor Sensitivities: Electronic Gremlins

Modern ATVs rely on sensors to monitor engine performance.

  • Throttle Position Sensor (TPS): The TPS tells the ECU the position of the throttle. A faulty TPS can send incorrect data to the ECU, causing poor throttle response and acceleration issues.
  • Engine Coolant Temperature Sensor (ECT): The ECT monitors the engine coolant temperature. A faulty ECT can cause the ECU to miscalculate the fuel mixture.
  • Manifold Absolute Pressure (MAP) Sensor: The MAP sensor measures the pressure in the intake manifold. A faulty MAP sensor can cause the ECU to miscalculate the fuel mixture.
  • Oxygen (O2) Sensor: The O2 sensor measures the amount of oxygen in the exhaust. A faulty O2 sensor can cause the ECU to miscalculate the fuel mixture.

Diagnostic Codes: Deciphering the Data

The ECU stores diagnostic trouble codes (DTCs) that can help pinpoint the source of the problem. You can retrieve the DTCs using a diagnostic tool or by following the procedure outlined in the service manual. Once you have the DTCs, you can use the service manual to troubleshoot the corresponding components.

Preventive Maintenance: Staying Ahead of the Game

Regular maintenance is key to preventing acceleration problems.

  • Follow the Maintenance Schedule: Adhere to the maintenance schedule outlined in the owner's manual.
  • Use Quality Parts: Use genuine Can-Am parts or reputable aftermarket parts.
  • Keep it Clean: Keep the ATV clean, especially the air filter and CVT clutch area.
  • Regular Inspections: Regularly inspect the ATV for signs of wear or damage.

Frequently Asked Questions

  • Why is my Outlander 570 sputtering during acceleration? Sputtering is often caused by a lean fuel mixture, a faulty spark plug, or a clogged fuel injector. Check these components first.
  • My Outlander 570 accelerates fine at first, then loses power. What could it be? This could indicate a fuel pump issue, a clogged fuel filter, or a problem with the CVT clutch.
  • How often should I replace the CVT belt on my Outlander 570? It depends on riding conditions, but generally, every 1000-2000 miles or every year or two.
  • Can I clean the CVT clutch myself? Yes, but it requires some mechanical skill and the right tools. Follow the service manual instructions carefully.
  • Where can I find the service manual for my Outlander 570? You can purchase a service manual from a Can-Am dealer or online.

Conclusion

Troubleshooting acceleration problems on your Can-Am Outlander 570 can seem daunting, but by systematically checking the fuel system, air intake, ignition, CVT clutch, and engine health, you can often identify the root cause. Remember to consult your service manual and consider seeking professional help if you're uncomfortable performing any of these repairs yourself.