fits model: Xs650, Xs, 650. make: Yamaha. year: 1976–1977.

( Mounting Style: Slip-on ), ( Type: Exhaust Muffler ), ( Color: Chrome ), ( Material: Steel ), ( Country Of Origin: Japan ), ( Placement On Vehicle: Left ), ( UPC: 584147110000 )
The **Yamaha XS650 Left Side Exhaust Muffler (Part #584-14711-00-00, 1976 1977 Models)** is a meticulously crafted component designed to deliver both performance and authenticity for enthusiasts seeking to restore or preserve the classic character of their Yamaha XS650. This left-side exhaust muffler is a direct-fit replacement, ensuring seamless integration with the original engine bay layout while maintaining the iconic styling that defined Yamaha s mid-1970s sport-touring motorcycles. Crafted from high-quality stainless steel, the muffler is built to withstand the rigors of daily riding, offering durability that matches the legendary reliability of the XS650 s air-cooled, transverse-four engine. Its sleek, rounded contours and polished finish not only enhance the bike s aesthetic appeal but also contribute to a refined exhaust note one that balances the deep, resonant growl of the XS650 s exhaust system with a touch of modern refinement. The muffler s internal design features a carefully tuned baffling system, which helps optimize exhaust flow while minimizing backpressure, ensuring that the engine s natural power delivery remains intact. Whether used as part of a full restoration or as a standalone upgrade for a vintage ride, this muffler preserves the soul of the XS650, allowing riders to experience the timeless blend of sporty handling and comfortable touring capabilities that made this model a cult favorite. For collectors and riders who appreciate the marriage of mechanical precision and vintage charm, this exhaust component is an essential piece to maintain the authenticity and performance of their Yamaha XS650.
### **Pros and Cons of Buying a 1976-1977 Yamaha XS650 Left Muffler (Part #584-14711-00-00)**
#### **Pros:**1. **Authentic Fit and Finish** This is an original Yamaha muffler, meaning it will match the factory look and feel of your XS650. Aftermarket replacements may not align perfectly with the bike s vintage aesthetic.
2. **Reliability** Yamaha parts from this era were built to last, and the muffler is likely in good condition if it came from a well-maintained bike. The construction is sturdy, with proper heat resistance for the exhaust system.
3. **Sound Character** The stock muffler produces a classic, slightly deeper exhaust note compared to modern aftermarket mufflers, which may appeal to enthusiasts who prefer a more traditional Yamaha sound.
4. **Ease of Installation** Since it s an original part, it should fit without modification, assuming the exhaust system is intact. No custom welding or adapters are typically required.
5. **Resale Value** If you plan to restore or sell the bike later, having original components can increase its appeal to collectors and purists.
6. **Durability** The muffler is made from stainless steel (or at least a high-quality material for the time), which means it should resist rust and corrosion better than some cheaper aftermarket alternatives.
7. **Historical Accuracy** For restoration projects, using original parts ensures the bike stays true to its factory specifications, which is important for authenticity.
#### **Cons:**1. **Potential Rust or Wear** If the muffler came from a bike that was neglected, it may have internal rust or a compromised heat shield. Inspecting it closely is essential before purchasing.
2. **Limited Performance** The stock muffler is not optimized for modern performance standards. It may restrict exhaust flow compared to aftermarket high-flow mufflers, which could slightly reduce horsepower and throttle response.
3. **Availability of Replacement Parts** While not extremely rare, finding a matching muffler in good condition can be challenging, especially if you re not part of a motorcycle restoration community.
4. **Cost Relative to Aftermarket Options** Depending on condition, an original Yamaha muffler may cost more than a modern aftermarket muffler with similar (or better) performance characteristics.
5. **Potential for Leaks** Over time, the gaskets and seals inside the muffler can degrade, leading to exhaust leaks. This is more common in older parts unless they ve been well-maintained.
6. **Sound May Be Too Muted for Some Riders** The stock muffler is relatively quiet by modern standards. If you prefer a louder, more aggressive exhaust tone, you may need to pair it with a backbox or consider an aftermarket muffler.
7. **No Modern Safety Features** Unlike newer mufflers, this part may not have modern heat-resistant coatings or improved insulation, which could affect longevity in extreme conditions.
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### **Conclusion**
Buying an original **1976-1977 Yamaha XS650 left muffler (Part #584-14711-00-00)** is a solid choice if:- You prioritize **authenticity** and want to maintain the bike s original specifications.
- You re restoring a classic XS650 and prefer using genuine parts.
- You don t mind the **slightly muted sound** and are okay with the stock performance characteristics.
- You can **inspect the muffler thoroughly** for rust, leaks, or damage before purchasing.
However, if:- You want **better performance** (more power, better exhaust flow), an aftermarket muffler may be a better investment.
- You prefer a **louder or more aggressive sound**, a modern muffler or backbox setup would be more suitable.
- You re on a tight budget and can find a **high-quality aftermarket muffler** at a lower cost, that might be a more practical choice.
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### **Recommendation**
If you re restoring or maintaining a **1976-1977 Yamaha XS650** and want to stay true to its original design, **purchasing this muffler is a good decision**, provided it is in **good condition with no rust or leaks**. Inspect it carefully, including the heat shield and exhaust outlet, before buying.
If you re not restoring and instead want **better performance, sound, or longevity**, consider a **modern aftermarket muffler** (such as those from **Akrapovi , Speed Easy, or Yoshimura**) that offers improved flow, durability, and sound characteristics.
For most **daily riding or performance-oriented XS650s**, an aftermarket muffler is likely the better long-term choice. However, for **purists and collectors**, the original Yamaha part remains a valuable and authentic option.
Show condition all parts are sold as is.