Hey there, fellow ATV enthusiasts! So, your Yamaha Raptor 700's axle is giving you some trouble, huh? Don't sweat it; it's a pretty common issue, especially if you're hitting the trails hard or putting your machine through its paces. Replacing the axle is a task you can totally handle in your garage with the right tools and a little bit of know-how. This guide is designed to walk you through the entire Yamaha Raptor 700 axle replacement process, from start to finish, making it as painless as possible. We'll cover everything from gathering your tools to getting your Raptor back on the track or trails. Ready to get your hands dirty and learn how to swap out that old axle for a shiny new one? Let's dive in!

This guide focuses specifically on the Yamaha Raptor 700 axle replacement process. Before we get started, it's worth mentioning that the Raptor 700 is known for its power and performance, making it a favorite among ATV riders. However, that power can also put a lot of stress on the drivetrain, including the axle. Axle damage can manifest in various ways, such as clicking noises, vibrations, or even the wheel feeling loose. Ignoring these signs can lead to more significant damage and potentially leave you stranded. So, let's make sure you know what you're getting into and how to fix it.

Tools and Parts You'll Need

Alright, before we start wrenching, let's gather the necessary tools and parts. Having everything ready to go will make the job much smoother and prevent those frustrating trips to the hardware store mid-project. Here's a list of what you'll need:

• New Axle: Obviously, you'll need a new axle! Make sure you get one specifically designed for your Yamaha Raptor 700. There are aftermarket options available that can offer improved strength and durability. When selecting an axle, consider your riding style and the terrain you typically ride on. If you're into aggressive riding or jumping, a heavy-duty axle might be a wise investment. Research different brands and read reviews to find one that suits your needs. Don't skimp on quality; a good axle will save you headaches down the road. Consider brands like QuadBoss, G-Force, or Rhino. Check the length and spline count to ensure it's compatible with your Raptor 700.
• Socket Set: A comprehensive socket set, including both metric and standard sizes. You'll need sockets to remove the wheels, the axle nut, and various bolts on the suspension components. A good set will have deep sockets and extensions for hard-to-reach areas. An impact socket set is also handy if you have an impact wrench.
• Wrench Set: A set of wrenches, again in both metric and standard sizes, to tackle nuts and bolts that sockets can't reach. A combination wrench set (open-end and box-end) will be your best bet.
• Torque Wrench: Crucial for tightening bolts to the correct specifications. Overtightening can damage components, while undertightening can lead to parts coming loose. Refer to your Yamaha Raptor 700 service manual for torque specs.
• Jack and Jack Stands: Essential for safely lifting and supporting your ATV. Never work under a vehicle supported only by a jack; always use jack stands.
• Wheel Chock: To keep the ATV stable while you're working on it. Place the chock on the opposite end of the axle you are replacing.
• Penetrating Oil: To help loosen stubborn nuts and bolts, especially if your Raptor has seen some action in the elements. Spray it on the threads a few minutes before you attempt to remove them.
• Hammer: For persuading stubborn components to separate.
• Pry Bar or Tire Spoon: Useful for separating suspension components and prying the axle out.
• Grease and Grease Gun: For lubricating the new axle and bearings. Make sure you use a grease compatible with ATV applications.
• Shop Rags and Gloves: To keep your hands clean and protect them from sharp edges and grease.
• Service Manual: A Yamaha Raptor 700 service manual is invaluable. It provides detailed diagrams, torque specifications, and step-by-step instructions for various maintenance and repair tasks.

Step-by-Step Axle Replacement Guide

Now, let's get into the nitty-gritty of replacing that axle. Follow these steps carefully, and you'll be back on the trails in no time. Remember to work in a well-ventilated area and wear safety glasses and gloves throughout the process. Safety first, always!

1. Preparation and Safety:
   • Park your Yamaha Raptor 700 on a level surface. Engage the parking brake. If your Raptor doesn't have a parking brake, chock the front wheels. This will prevent the ATV from rolling while you're working.
   • Gather all the tools and parts you listed above. It's always best to have everything ready before you start.
   • Put on your safety glasses and gloves. Protect yourself from dirt, debris, and potential injury.
2. Lift and Secure the ATV:
   • Place the jack under the frame near the rear of the ATV. Lift the rear end of the Raptor until the rear tires are off the ground.
   • Position jack stands under the frame, ensuring they are securely placed. Lower the ATV onto the jack stands. This is crucial for your safety. Double-check that the ATV is stable before proceeding.
3. Remove the Wheel:
   • Loosen the lug nuts on the wheel of the side where you are replacing the axle. Don't remove them completely yet.
   • Once the ATV is off the ground, remove the lug nuts completely and take off the wheel. Store the wheel in a safe place.
4. Disconnect Suspension Components:
   • Loosen the axle nut: This is often the toughest part. Use a socket and breaker bar (or an impact wrench) to loosen the axle nut. It can be incredibly tight, so penetrating oil may be necessary. If the axle spins while you're trying to loosen the nut, you may need to apply the brakes or have an assistant hold the wheel. Once the nut is loose, remove it completely.
   • Disconnect the shock: Locate the lower shock bolt on the swingarm. Remove the bolt and detach the shock from the swingarm. This will allow the swingarm to move freely.
   • Detach the brake caliper: Unbolt the brake caliper from the swingarm. You may need to disconnect the brake line from the caliper. Be careful not to damage the brake line. Hang the caliper out of the way, so it doesn't get in the way.
   • Disconnect the tie rod end: If necessary, disconnect the tie rod end from the knuckle. This will give you more room to maneuver the axle. The tie rod end will affect the swingarm's movement.
5. Remove the Old Axle:
   • Remove the axle from the hub: Push the axle inward to separate it from the hub. It may require a bit of force. Use a hammer and a piece of wood or a punch to gently tap the axle out of the hub if it is stuck.
   • Remove the axle from the swingarm: Pull the old axle out of the swingarm. It may require some wiggling and prying. Use a pry bar or tire spoon to carefully separate the axle from the swingarm. Be careful not to damage the swingarm or any other components.
6. Install the New Axle:
   • Grease the new axle: Apply a generous amount of grease to the splines and bearing surfaces of the new axle. This will help with smooth operation and prevent premature wear. Use the grease gun to pump grease into the fittings if your new axle has them.
   • Insert the new axle: Carefully slide the new axle through the swingarm and into the hub. Align the splines correctly and make sure it goes in all the way. You may need to use a hammer and a piece of wood or a punch to gently tap the axle into place.
   • Reconnect the suspension components: Reattach the shock, brake caliper, and tie rod end, securing the bolts to the factory specifications.
7. Reassemble and Test:
   • Install the wheel: Put the wheel back on and tighten the lug nuts by hand, then torque them to the manufacturer's specification using a torque wrench. Make sure the wheel is properly seated and secure.
   • Lower the ATV: Lower the ATV back to the ground.
   • Final checks: Double-check all bolts to ensure they are properly tightened. Make sure the brake caliper is functioning correctly.
   • Test ride: Take your Yamaha Raptor 700 for a test ride to ensure everything is working correctly. Listen for any unusual noises or vibrations. Check the axle and suspension components for leaks or any signs of damage. If everything seems fine, you're good to go!

Troubleshooting Common Issues

Even with the best instructions, you might run into a few snags during your Yamaha Raptor 700 axle replacement. Here are some common issues and how to troubleshoot them:

• Stubborn Axle Nut: This is the most common challenge. Use penetrating oil, a breaker bar, and possibly an impact wrench. If the axle spins while you're trying to loosen the nut, have someone apply the brakes or use a strap wrench to hold the axle in place.
• Seized Axle: If the axle is stuck in the hub or swingarm, try applying penetrating oil and letting it sit for a while. Use a hammer and a punch to gently tap the axle out. Be patient, and don't force it.
• Damaged Threads: If you damage the threads on a bolt or nut, you may need to replace the damaged part. Be careful not to cross-thread bolts during reassembly.
• Improper Torque: Always use a torque wrench and follow the manufacturer's specifications. Overtightening can damage components, while undertightening can cause parts to come loose. Incorrect torque is one of the biggest reasons for axle failure.
• Vibrations After Replacement: If you experience vibrations after the axle replacement, double-check that the axle nut is properly torqued, the wheel is balanced, and all suspension components are securely fastened. It could also be a sign of a bent axle or damaged bearing.

Maintaining Your New Axle

Once you've successfully replaced the axle on your Yamaha Raptor 700, it's important to take steps to maintain it and extend its lifespan. Regular maintenance will prevent future problems and keep your ATV running smoothly. Here are a few tips:

• Regular Greasing: If your new axle has grease fittings, grease them regularly (every 10-20 hours of riding, or after every wet or muddy ride). This helps keep the bearings lubricated and prevents premature wear. Use the correct type of grease designed for ATV applications.
• Inspection: Periodically inspect the axle for any signs of damage, such as bends, cracks, or rust. Also, check the axle nut for tightness. Catching issues early can prevent more significant problems.
• Proper Riding: Avoid excessive wheel spin and harsh impacts, especially if you have a heavy-duty axle. These can put extra stress on the axle and other drivetrain components.
• Wheel Balance: Have your wheels balanced periodically, especially if you notice any vibrations. An unbalanced wheel can put extra stress on the axle and bearings.
• Regular Cleaning: After each ride, clean your Yamaha Raptor 700, especially the axle area. Remove any mud, dirt, or debris that could accelerate wear and tear. You can use a pressure washer, but be careful not to blast water directly into the bearings.

Conclusion: Back to Riding!

There you have it! Replacing the axle on your Yamaha Raptor 700 might seem intimidating at first, but with this guide and a bit of patience, you can absolutely handle it. Remember to always prioritize safety, double-check your work, and use the correct tools. Enjoy your ride and safe travels! Now that you've completed this repair, you can get back to enjoying the trails, dunes, and tracks. Happy riding, and remember to always ride responsibly and within your skill level. Keep your Raptor maintained, and it will keep you having fun! And if you run into any more issues, don't hesitate to seek the assistance of a certified mechanic. Enjoy your ride!