So, you’re looking to upgrade the sound and performance of your Harley-Davidson touring bike? Changing the slip-on exhaust is a fantastic first step. It’s a relatively straightforward modification that can make a big difference in both how your bike sounds and how it performs. Plus, it’s a project you can tackle in your own garage with the right tools and a little bit of know-how. This guide will walk you through the entire process, from gathering your tools to firing up your newly modified ride.
Before you dive in, remember to prioritize safety. Always wear appropriate safety gear, like eye protection and gloves. Work in a well-ventilated area, and make sure your bike is cool before you start. This guide is for informational purposes only, and I’m not responsible for any damage or injury that may occur. If you’re not comfortable working on your own bike, it’s always best to consult a professional mechanic. But if you’re ready to get your hands dirty, let’s get started!
Understanding Slip-on Exhausts
Slip-on exhausts, also known as mufflers, are a popular upgrade for Harley-Davidson touring models. They replace the stock mufflers while retaining the original head pipes. This makes them easier to install than a full exhaust system, which replaces the head pipes as well. Slip-ons offer a noticeable improvement in sound, often providing a deeper, more aggressive tone. They can also improve performance, although the gains are usually modest compared to a full exhaust system. The primary benefit is usually the enhanced sound and aesthetic.
Benefits of Upgrading to Slip-on Exhausts
- Improved Sound: A more aggressive and pleasing exhaust note.
- Enhanced Aesthetics: A visually appealing upgrade that can change the look of your bike.
- Performance Boost (Modest): Some performance gains, particularly with improved airflow.
- Easy Installation: Relatively simple to install compared to a full exhaust system.
- Cost-Effective: Generally more affordable than a full exhaust system.
Choosing the Right Slip-on Exhaust
Choosing the right slip-on exhaust involves considering several factors. First, consider the style you want: chrome, black, or a specific design that matches your bike’s aesthetic? Second, think about the sound level you desire. Some exhausts are louder than others, so consider your neighbors and local noise ordinances. Finally, check compatibility with your specific Harley-Davidson touring model. Most manufacturers will list the compatible years and models. Research different brands and read reviews to get an idea of the quality and sound of each option.
Here are some popular brands:
- Screamin’ Eagle: Harley-Davidson’s own performance brand, known for quality and performance.
- Vance & Hines: A well-known brand offering a wide range of exhaust options with various sound profiles.
- Cobra: Offers a balance of quality, performance, and affordability.
- Bassani: Known for high-performance exhaust systems with a distinctive sound.
- Rinehart Racing: High-quality exhaust systems with a deep, throaty sound.
Make sure the slip-on exhaust you select fits your model year and engine size (e.g., 107, 114, or 117 cubic inch).
Tools and Materials You’ll Need
Before you start, gather all the necessary tools and materials. This will make the process much smoother and prevent any frustrating trips to the hardware store mid-project. Here’s a comprehensive list:
- New Slip-On Exhausts: The specific mufflers you’ve chosen for your Harley-Davidson.
- Wrench Set: Metric wrenches are essential for Harley-Davidson bikes.
- Socket Set: Includes various sizes to fit the fasteners.
- Torque Wrench: Crucial for tightening bolts to the correct specifications, preventing damage.
- Penetrating Oil (e.g., PB Blaster): Helps loosen stubborn bolts.
- Anti-Seize Compound: Prevents future corrosion and makes disassembly easier.
- Gloves: Protect your hands.
- Safety Glasses: Protect your eyes.
- Jack or Lift (Optional): Makes the job easier, especially if working on the ground.
- Wheel Chocks: To stabilize the bike.
- Shop Rags or Paper Towels: For cleaning and wiping up spills.
- Impact Driver (Optional): Can be helpful for removing stubborn bolts.
- Torque Specs: Consult your Harley-Davidson service manual for torque specifications for the exhaust system bolts.
Step-by-Step Installation Guide
Now, let’s get into the step-by-step process of changing your slip-on exhaust. Take your time, follow these instructions carefully, and don’t hesitate to take breaks if you need them. Remember, patience is key!
Step 1: Preparation Is Key
1. Safety First: Put on your safety glasses and gloves. Ensure the motorcycle is on a level surface and that the engine is cool. Working on a hot exhaust system can lead to burns. (See Also: How To Weld Slip On Flange )
2. Secure the Motorcycle: Use wheel chocks to stabilize the front and rear wheels. If you have a motorcycle lift, use it to raise the bike for easier access, otherwise, work on a flat surface.
3. Locate the Exhaust: Identify the stock mufflers. They’re typically bolted to the head pipes and supported by a bracket. You will need to remove the mounting bolts and clamps.
Step 2: Removing the Old Exhaust
1. Loosen the Clamps: Locate the clamps that secure the mufflers to the head pipes. Use a wrench or socket to loosen the clamp bolts. Penetrating oil can assist with stubborn bolts.
2. Remove the Mounting Bolts: Locate the bolts that secure the mufflers to the brackets on the frame. Remove these bolts using the appropriate wrench or socket. If the bolts are rusted, use penetrating oil and let it sit for a few minutes before attempting removal.
3. Carefully Remove the Mufflers: Once the clamps and mounting bolts are removed, carefully slide the old mufflers off the head pipes. You may need to wiggle them or use a rubber mallet to gently tap them loose if they’re stuck. Be careful not to damage the head pipes.
4. Inspect and Clean: Inspect the head pipes for any damage or corrosion. Clean the mating surfaces of the head pipes where the new mufflers will connect. This ensures a good seal.
Step 3: Installing the New Exhaust
1. Prepare the New Mufflers: Apply a small amount of anti-seize compound to the inside of the new mufflers where they will connect to the head pipes. This will help prevent corrosion and make future removal easier.
2. Install the New Mufflers: Carefully slide the new mufflers onto the head pipes. Ensure they are fully seated and aligned correctly. Follow the manufacturer’s instructions for the specific mufflers. (See Also: Have To Tune With Rush Slip On )
3. Attach the Mounting Brackets: Install the mounting bolts that secure the mufflers to the frame brackets. Don’t tighten them fully yet; leave them slightly loose so you can adjust the alignment.
4. Tighten the Clamps: Tighten the exhaust clamps that connect the mufflers to the head pipes. Make sure the clamps are properly aligned and that the mufflers are seated securely. Tighten the bolts to the manufacturer’s specified torque, which can be found in your service manual.
5. Torque the Mounting Bolts: Using a torque wrench, tighten the mounting bolts to the correct torque specifications. Refer to your Harley-Davidson service manual for the proper torque values. Overtightening can damage the threads, while undertightening can cause the exhaust to leak or come loose.
Step 4: Final Checks and Adjustments
1. Alignment Check: Make sure the mufflers are aligned properly and that they don’t interfere with any other components on the bike. Check the alignment of the tips and make sure they are positioned correctly.
2. Double-Check all Bolts: Go back and double-check all bolts and clamps to ensure they are properly tightened. Vibration can cause loose bolts, so this step is very important.
3. Start the Engine: Start the engine and let it idle for a few minutes. Check for any exhaust leaks. You might hear a hissing sound if there are leaks. If you find any leaks, tighten the clamps or bolts as needed. If the leaks persist, you may need to replace the exhaust gaskets.
4. Test Ride: Take your bike for a short test ride. Listen for any unusual noises or performance issues. Check again for any exhaust leaks after the ride. Make sure the exhaust system is performing as expected and that you’re happy with the sound.
Tips for a Smooth Installation
- Take Pictures: Before you start, take pictures of the existing exhaust system. This can be helpful when putting the new exhaust on.
- Use Penetrating Oil: Apply penetrating oil to any stubborn bolts before attempting to remove them.
- Don’t Overtighten: Use a torque wrench and follow the torque specifications in your service manual. Overtightening can damage threads.
- Work in a Clean Area: Keep your work area clean to avoid losing parts.
- Read the Instructions: Carefully read the manufacturer’s instructions for your new slip-on exhausts.
- Don’t Force Anything: If something doesn’t fit easily, don’t force it. Check your work and make sure you have the correct parts.
- Check for Leaks: After installation, carefully check for any exhaust leaks.
- Listen to the Sound: Enjoy the new sound of your Harley!
Common Mistakes to Avoid
- Not Using a Torque Wrench: Failing to use a torque wrench can lead to over-tightening or under-tightening bolts, causing damage or leaks.
- Forgetting Anti-Seize: Not using anti-seize compound can make future removal difficult.
- Skipping the Test Ride: Always take a test ride to check for leaks and ensure the exhaust is working correctly.
- Not Checking for Leaks: Failing to check for leaks after installation can lead to exhaust fumes entering the engine.
- Forcing Parts: If something doesn’t fit, don’t force it. Double-check your work and make sure you have the correct parts.
Troubleshooting Common Issues
Even with careful planning, you might encounter a few issues. Here’s how to address some common problems: (See Also: How To Clean White Slip On Vans With Toothpaste )
- Exhaust Leaks: If you hear a hissing sound, you likely have an exhaust leak. Check the clamps and bolts, and tighten them as needed. If the leaks persist, you may need to replace the exhaust gaskets.
- Mufflers Won’t Slide On: The mufflers may be stuck due to corrosion or a tight fit. Apply penetrating oil and gently tap them with a rubber mallet. Make sure you have the correct size.
- Bolts are Stuck: If bolts are stuck, use penetrating oil and let it soak. An impact driver can be helpful. Apply heat carefully, but be very cautious with heat around the bike’s components.
- Poor Performance: If you experience a drop in performance, check for leaks and ensure the exhaust is properly installed. You may need to have your bike tuned to optimize performance with the new exhaust.
- Sound Issues: If the sound is not what you expected, check the manufacturer’s information. Some mufflers change sound over time. Ensure there are no leaks.
Safety Precautions
Always prioritize safety when working on your motorcycle. Here are some essential safety precautions:
- Wear Safety Glasses: Protect your eyes from flying debris.
- Wear Gloves: Protect your hands from sharp edges, hot parts, and chemicals.
- Work in a Well-Ventilated Area: Avoid breathing in exhaust fumes.
- Let the Engine Cool: Never work on a hot exhaust system.
- Use Wheel Chocks: Prevent the bike from rolling.
- Be Aware of Surroundings: Keep your work area clear of obstructions.
- Use Proper Tools: Use the right tools for the job to avoid injury.
- Consult a Professional: If you’re unsure about any step, consult a professional mechanic.
Maintenance After Installation
After installing your new slip-on exhaust, there are a few things you should do to ensure its longevity and performance:
- Regular Inspection: Inspect the exhaust system periodically for leaks, loose bolts, and corrosion.
- Cleaning: Clean the exhaust pipes regularly to prevent corrosion. Use a mild soap and water solution and avoid abrasive cleaners.
- Check for Leaks: Periodically check for exhaust leaks, especially after long rides or if you notice a change in sound.
- Torque Checks: Check the torque of the bolts and clamps periodically to ensure they remain secure.
- Tuning (Optional): If you’ve made significant changes to your exhaust system, you may want to have your bike tuned to optimize performance.
Legal Considerations
Before installing a new exhaust, be aware of any local noise ordinances or emissions regulations. Some areas have restrictions on the sound level of motorcycle exhausts. Also, check to ensure that the exhaust you choose complies with any applicable emissions standards. Always be respectful of your neighbors and the environment.
Many aftermarket exhaust systems are designed for off-road use only. Ensure your chosen exhaust system is legal for street use in your area. You can usually find this information on the manufacturer’s website or in the product description.
Conclusion
Changing the slip-on exhaust on your Harley-Davidson touring bike is a rewarding project that can significantly enhance your riding experience. By following these steps and taking your time, you can successfully install your new exhaust and enjoy the improved sound and performance. Remember to always prioritize safety and consult a professional if you have any doubts. Enjoy the ride!
Changing the slip-on exhaust on your Harley-Davidson touring bike is a manageable project that can significantly improve your bike’s sound and appearance. By following the steps outlined in this guide, you can confidently undertake this upgrade in your own garage. Remember to prioritize safety, take your time, and enjoy the process.
With your new slip-on exhaust installed, you’ll be ready to hit the road and experience the improved sound and performance. Remember to regularly check your exhaust system for any issues. Safe riding!
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