The Polaris Outlaw 90 is a fantastic little ATV, perfect for introducing youngsters to the thrill of off-roading. But like any machine, it can have its hiccups. One of the most common frustrations Outlaw 90 owners face is starter trouble, leaving young riders stranded and itching to hit the trails. Understanding the potential causes and how to troubleshoot them is key to keeping your child's ATV running smoothly.

Why Won't My Outlaw 90 Start? Let's Investigate!

There's nothing more disheartening than a child ready to ride, only to be met with a sputtering engine or, worse, complete silence. Before you start tearing things apart, let's systematically explore the most likely culprits behind your Polaris Outlaw 90's starting woes.

1. The Battery: Powering the Fun (or Lack Thereof)

The battery is the heart of the electrical system and the prime suspect in many starting problems. A weak or dead battery simply can't provide enough juice to crank the engine over.

  • How to Check It: Use a multimeter to measure the battery voltage. A fully charged 12-volt battery should read around 12.6 volts. Anything below 12 volts indicates a low charge, and below 11.5 volts means it's likely dead.
  • What to Do:
    • Charge It: Connect the battery to a compatible battery charger and let it charge fully. A trickle charger is ideal for maintaining the battery during periods of inactivity.
    • Check the Connections: Ensure the battery terminals are clean and free of corrosion. Use a wire brush or sandpaper to remove any buildup. Make sure the connections are tight and secure.
    • Load Test: Even if the battery shows a good voltage, it might not be able to deliver enough current under load. A load test will reveal if the battery can handle the demand. Most auto parts stores offer free battery testing services.
    • Consider Replacement: If the battery is old (3+ years) or consistently failing to hold a charge, it's probably time for a new one.

2. The Starter Solenoid: The Gatekeeper of Power

The starter solenoid acts as a switch, relaying power from the battery to the starter motor. If the solenoid is faulty, it won't allow current to flow, preventing the starter from engaging.

  • How to Check It:

    • Listen for a Click: When you press the start button, listen for a distinct "click" sound from the solenoid. If you hear a click, the solenoid is likely receiving power, but it doesn't necessarily mean it's working correctly.
    • Bypass Test: This is a common diagnostic technique. With the ignition OFF, carefully use a screwdriver or jumper cable to bridge the two large terminals on the solenoid. Be extremely careful when doing this, as it will create sparks! If the starter motor engages and cranks the engine, the solenoid is likely the problem.
    • Multimeter Test: Use a multimeter to check for voltage on both sides of the solenoid when the start button is pressed. If you have voltage on one side but not the other, the solenoid is faulty.

  • What to Do: Replace the solenoid. They're relatively inexpensive and easy to replace.

3. The Starter Motor: The Engine's Cranking Muscle

The starter motor is responsible for physically turning the engine over until it starts. If the motor is damaged, worn out, or has internal problems, it won't be able to do its job.

  • How to Check It:

    • Listen for Unusual Noises: Grinding, whining, or clicking noises from the starter motor indicate potential problems.
    • Voltage Test: Check for voltage at the starter motor when the start button is pressed. If you have voltage but the motor isn't turning, the motor is likely faulty.
    • Visual Inspection: Remove the starter motor and inspect it for physical damage, such as broken wires, loose connections, or a damaged armature.

  • What to Do:

    • Repair (Sometimes): Depending on the specific problem, you might be able to repair the starter motor. This could involve replacing worn brushes, cleaning the commutator, or repairing damaged wiring. However, unless you're experienced with small electric motors, it's usually easier and more cost-effective to replace the entire unit.
    • Replace: Replacing the starter motor is a straightforward process. Make sure to disconnect the battery before starting.

4. The Ignition Switch: The Key to the Kingdom

The ignition switch is responsible for initiating the starting sequence. A faulty switch can prevent power from reaching the starter circuit.

  • How to Check It:

    • Multimeter Test: Use a multimeter to check for continuity between the appropriate terminals on the ignition switch when it's in the "start" position. Consult your ATV's wiring diagram to identify the correct terminals.
    • Visual Inspection: Look for any signs of damage to the switch, such as broken wires, loose connections, or corrosion.

  • What to Do: Replace the ignition switch.

5. Wiring Issues: The Invisible Enemy

Damaged, corroded, or loose wiring can disrupt the flow of electricity and prevent the starter from working.

  • How to Check It:

    • Visual Inspection: Carefully inspect all wiring connections in the starting circuit for signs of damage, corrosion, or looseness. Pay close attention to the ground connections.
    • Continuity Test: Use a multimeter to check for continuity in the wiring harness. This will help you identify any broken or damaged wires.

  • What to Do:

    • Clean Connections: Clean any corroded connections with a wire brush or sandpaper and apply dielectric grease to prevent future corrosion.
    • Repair Damaged Wires: Repair or replace any damaged wires. Use proper crimping tools and connectors to ensure a secure and reliable connection.
    • Tighten Connections: Ensure all wiring connections are tight and secure.

6. The Kill Switch: A Safety Feature Gone Wrong

The kill switch is designed to shut off the engine in an emergency. However, a faulty kill switch can sometimes prevent the engine from starting.

  • How to Check It:

    • Ensure It's in the "Run" Position: This might sound obvious, but it's often overlooked. Double-check that the kill switch is in the "run" position.
    • Bypass Test: Disconnect the kill switch wiring and try starting the ATV. If it starts, the kill switch is the problem.

  • What to Do: Replace the kill switch.

7. The Neutral Safety Switch: Keeping Things Safe

The neutral safety switch prevents the engine from starting unless the ATV is in neutral. A faulty switch can prevent the engine from starting even when it is in neutral.

  • How to Check It:

    • Ensure It's in Neutral: Make sure the ATV is definitely in neutral. Sometimes it can be tricky to find.
    • Bypass Test: Locate the neutral safety switch (consult your ATV's service manual for its location) and disconnect its wiring. Then, try starting the ATV. If it starts, the switch is likely the problem.

  • What to Do: Replace the neutral safety switch.

8. Carburetor Issues: Fuel Delivery Problems

While not directly related to the starter motor itself, a dirty or clogged carburetor can prevent the engine from starting, making it seem like a starter problem.

  • How to Check It:

    • Check the Fuel: Ensure there is fresh fuel in the tank.
    • Check the Fuel Filter: A clogged fuel filter can restrict fuel flow.
    • Inspect the Carburetor: Look for any signs of dirt or debris in the carburetor.

  • What to Do:

    • Clean the Carburetor: Clean the carburetor thoroughly, paying close attention to the jets and passages.
    • Replace the Fuel Filter: Replace the fuel filter regularly to prevent clogging.

Pro Tip: The Importance of Regular Maintenance

Preventive maintenance is key to avoiding starter problems and keeping your Polaris Outlaw 90 running smoothly.

  • Keep the battery charged: Use a trickle charger to maintain the battery during periods of inactivity.
  • Clean battery terminals: Regularly clean the battery terminals to prevent corrosion.
  • Inspect wiring: Regularly inspect wiring connections for damage or looseness.
  • Replace the fuel filter: Replace the fuel filter regularly to prevent clogging.

Frequently Asked Questions

Q: My Outlaw 90 clicks when I press the start button, but it won't start. What does this mean? A: This usually indicates a problem with the starter solenoid or a weak battery. Check the battery voltage and try bypassing the solenoid to see if the starter motor engages.

Q: How do I know if my battery is bad? A: Use a multimeter to check the battery voltage. A voltage below 12 volts indicates a low charge, and below 11.5 volts suggests the battery is dead or severely damaged. A load test can further confirm the battery's condition.

Q: Can I jump-start my Polaris Outlaw 90? A: Yes, you can jump-start your Outlaw 90 using a car battery. However, be careful not to exceed 12 volts, as this could damage the ATV's electrical system.

Q: How often should I replace the battery in my Outlaw 90? A: The lifespan of a battery depends on usage and maintenance, but typically you should replace it every 3-5 years.

Q: Where can I find a wiring diagram for my Polaris Outlaw 90? A: You can find a wiring diagram in your ATV's service manual. You can usually purchase a service manual online or from a Polaris dealer.

Final Thoughts

Troubleshooting starter problems on a Polaris Outlaw 90 can seem daunting, but by systematically checking each component, you can usually pinpoint the source of the issue. Remember to prioritize safety and consult your ATV's service manual for specific instructions and wiring diagrams. Happy riding!