Discover the Secret to Easy Maintenance: How to Change Spark Plugs 2008 RZR 800

The 2008 RZR 800 is a powerful and fun off-road machine, but like any vehicle, it requires regular maintenance to keep it running smoothly. One of the most important maintenance tasks is changing the spark plugs. Worn-out spark plugs can lead to decreased performance, poor fuel economy, and even engine damage.

This guide will walk you through the process of changing spark plugs on your 2008 RZR 800, ensuring you have a smooth and efficient experience.

Gathering Your Tools and Materials

Before you begin, make sure you have all the necessary tools and materials. You’ll need:

• New spark plugs: The recommended spark plugs for a 2008 RZR 800 are NGK CR8E.
• Socket wrench: A 5/8-inch socket wrench is required to remove and install the spark plugs.
• Torque wrench: A torque wrench is essential for tightening the spark plugs to the correct specifications.
• Ratchet: A standard ratchet will be helpful for working with the socket wrench.
• Extension: An extension bar will make it easier to reach the spark plugs.
• Gloves: Protect your hands from dirt and grime.
• Safety glasses: Protect your eyes from flying debris.
• Work surface: A clean, flat surface to work on.

Locating the Spark Plugs

The spark plugs on your 2008 RZR 800 are located on the top of the engine, near the cylinder heads.

1. Open the hood: Release the hood latch and open the hood of your RZR 800.
2. Locate the spark plugs: The spark plugs are located on the top of the engine, near the cylinder heads. They are easily identifiable by their black rubber boots.

Removing the Old Spark Plugs

1. Disconnect the spark plug wires: Gently pull the spark plug wires off the spark plugs. Make sure to pull straight up on the wire, not at an angle, to avoid damaging the wire or the spark plug.
2. Remove the spark plugs: Using the 5/8-inch socket wrench, loosen the spark plugs by turning them counter-clockwise. Once the spark plugs are loose, you can remove them by hand.

Inspecting the Old Spark Plugs

Before installing the new spark plugs, inspect the old ones. This will help you determine if there are any issues with your engine that need to be addressed.

1. Check the electrode gap: The electrode gap should be between 0.030 and 0.035 inches. If the gap is too wide or too narrow, it can affect engine performance.
2. Check for wear and tear: Look for signs of wear and tear on the electrodes, insulator, and shell of the spark plug. If you see any significant wear or damage, it’s time to replace the spark plugs.
3. Check for fouling: A fouled spark plug will have a black or brown coating on the electrode. This is caused by excessive fuel or oil buildup.

Installing the New Spark Plugs

1. Install the new spark plugs: Carefully thread the new spark plugs into the cylinder heads by hand, ensuring they are seated properly.
2. Tighten the spark plugs: Using the torque wrench, tighten the spark plugs to the specified torque of 18-20 ft-lbs. Over-tightening the spark plugs can damage the threads.
3. Reconnect the spark plug wires: Connect the spark plug wires to the new spark plugs. Make sure the wires are securely connected and that there are no loose connections.

Starting the Engine and Checking for Problems

1. Start the engine: After installing the new spark plugs, start the engine and let it run for a few minutes.
2. Listen for any unusual noises: If you hear any unusual noises, such as knocking or rattling, shut off the engine immediately and inspect the spark plugs again.
3. Check for leaks: Look for any leaks around the spark plugs. If you see any leaks, tighten the spark plugs again.

Post-Installation Tips

• Clean up: Once you’ve completed the spark plug replacement, clean up your work area and dispose of any old parts properly.
• Record the date: It’s a good idea to note the date you changed the spark plugs in your maintenance log so you know when it’s time for the next change.
• Regular maintenance: Changing spark plugs is just one part of regular maintenance for your RZR 800. You should also check other components, such as the air filter, oil, and coolant levels, to ensure your machine is running properly.

Riding with Confidence

By following these steps, you can confidently change the spark plugs on your 2008 RZR 800 and ensure that your machine is running smoothly and efficiently. Remember, regular maintenance is key to keeping your RZR 800 in top condition, allowing you to enjoy many years of off-road adventures.

What People Want to Know

Q: How often should I change the spark plugs on my RZR 800?

A: It’s generally recommended to change spark plugs every 20,000 miles or every two years, whichever comes first. However, you may need to change them sooner if you notice any signs of wear or damage.

Q: What happens if I don’t change my spark plugs?

A: If you don’t change your spark plugs, they can wear out and cause a number of problems, including decreased performance, poor fuel economy, and even engine damage.

Q: Can I change the spark plugs myself?

A: Yes, you can change the spark plugs yourself. It’s a relatively simple task that most people can do with the right tools and some basic mechanical knowledge.

Q: What are some signs that my spark plugs need to be changed?

A: Some common signs that your spark plugs need to be changed include:

• Decreased engine performance: Your RZR 800 may feel sluggish or slow to accelerate.
• Poor fuel economy: You may notice that your RZR 800 is getting worse gas mileage.
• Rough idling: The engine may idle roughly or stall.
• Misfires: You may hear a misfire or feel a jerking sensation when accelerating.
• Black smoke from the exhaust: Black smoke from the exhaust can indicate that your spark plugs are fouled.

Q: What should I do if I’m having trouble changing the spark plugs?

A: If you’re having trouble changing the spark plugs, it’s best to take your RZR 800 to a qualified mechanic. They can help you diagnose the problem and make any necessary repairs.