fits model: Ts650, X2, Sx, 650. make: Kawasaki. year: 1987–1996.

( Manufacturer Part Number: 12021-3704 ), ( Part Type: Intake Valve Carburetor ), ( Country Of Origin: Japan )
The **Kawasaki 12021-3704 650TS (1987 1996)** is a legendary dual-sport adventure motorcycle that seamlessly blends the rugged capability of an off-road machine with the refined versatility of a street-capable tourer. Engineered for both on-road efficiency and off-road resilience, this iconic model features Kawasaki s legendary **TS650** inline-four engine, a powerplant renowned for its balance of performance, reliability, and durability. The **649cc air-cooled, single-camshaft, SOHC engine** delivers a smooth yet spirited output, with a torque curve that ensures strong low-end pulling power ideal for both highway cruising and demanding trails. The **650TS** designation signifies its dual-purpose nature, offering a **50/50 split of on-road and off-road functionality**, making it a favorite among adventurers, commuters, and weekend explorers alike.
At the heart of its off-road prowess lies the **reed-valve intake system**, a hallmark of Kawasaki s early dual-sport designs. This system, featuring **dual reed valves** (often referred to as "reeds"), allows the engine to breathe more freely at higher RPMs while maintaining a robust low-end torque characteristic of off-road bikes. The **carbureted setup** typically paired with a **Pike or Mikuni carburetor** provides a classic, no-frills fuel delivery method that, while less precise than modern fuel injection, offers a distinct driving experience with a rich, responsive throttle response. The **intake reeds** play a crucial role in this system, regulating airflow and ensuring optimal engine performance across varying conditions, whether tackling rocky trails or navigating city streets.
The **650TS** is built on a **steel double-cradle frame**, a design choice that prioritizes durability and rigidity, absorbing the shocks of rough terrain while maintaining stability at speed. The **long-travel suspension** comprising a **front telescopic fork** and a **rear swingarm with a progressive-rate shock absorber** is tuned for both on-road comfort and off-road articulation, allowing the bike to handle uneven surfaces with ease. The **disc brake system** (front and rear) provides reliable stopping power, while the **wide, knobby tires** (often fitted with **120/90-19 or 130/80-18 rear** and **100/90-18 front** options) offer exceptional grip on dirt, gravel, and pavement alike. The **adjustable handlebars** and **upright riding position** further enhance its adaptability, making it comfortable for both short rides and extended journeys.
Under the hood, the **650TS** retains its original **mechanical fuel pump**, **distributor ignition**, and **wet sump lubrication system**, all of which contribute to its reputation for rugged reliability. The **primary drive chain** (rather than a shaft drive) adds to its off-road agility, allowing for greater articulation over obstacles. While the **650TS** lacks modern conveniences like ABS or electronic fuel injection, its simplicity is part of its charm an uncluttered, no-nonsense machine that rewards riders with a direct connection to the road (or trail).
For enthusiasts seeking to restore or modify their **Kawasaki 650TS**, the **12021-3704 carburetor intake reeds** and **reed valve assembly** are critical components that ensure proper airflow and engine performance. These parts are often sought after for their authenticity, as they replicate the original factory specifications, preserving the bike s classic character. Whether used in a **stock restoration**, a **lightweight conversion**, or a **performance upgrade**, the **650TS s reed-valve system** remains a defining feature of its off-road capability.
The **1987 1996 Kawasaki 650TS** is more than just a motorcycle it s a piece of adventure history, a testament to Kawasaki s early dual-sport innovation, and a versatile companion for riders who value both performance and practicality. Whether cruising along a scenic coastal highway or venturing into the wilderness, this bike embodies the spirit of exploration, offering a perfect blend of power, durability, and timeless appeal. For those who appreciate the art of mechanical simplicity and the thrill of the open road, the **650TS** remains an enduring classic.
### **Pros and Cons of Buying a Kawasaki 1987 1996 TS650 (1987-1996 TS650, TS 650 X2, 650SX, SX Carburetor, Intake Reeds, Reed Valve)**
#### **Pros**
1. **Classic Dual-Sport Design** The TS650 was one of the first production dual-sport motorcycles, blending on-road comfort with off-road capability. Its design is iconic and still respected in the adventure biking community.
2. **Reliable Engine** The 650cc parallel-twin engine is simple, durable, and known for longevity when properly maintained. Many examples easily exceed 20,000 30,000 miles with basic upkeep.
3. **Off-Road Capability** The TS650 was built for adventure, featuring a long-travel suspension, knobby tires, and a rugged frame. It handles rough terrain better than most on-road bikes of its era.
4. **Modularity & Customization** The TS650 has a strong aftermarket support, with options for carburetor upgrades (e.g., Keihin or Mikuni), reed valve modifications, and intake improvements. Many parts are still available from third-party suppliers.
5. **Lightweight for Its Class** At around 400 450 lbs (dry), it s lighter than modern adventure bikes, making it easier to maneuver and transport.
6. **Historical Significance** Owning a TS650 means joining a community of enthusiasts who appreciate its role in the evolution of dual-sport motorcycles.
7. **Fuel Efficiency** The air-cooled twin is thirsty by modern standards but far more efficient than a modern V-twin or inline-four, especially on long rides.
8. **Simplicity of Maintenance** Compared to modern fuel-injected bikes, the TS650 is easier to work on, with fewer electronic components and straightforward mechanical systems.
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#### **Cons**
1. **Age and Wear** Most TS650s in this era are 25 35 years old, meaning they may require significant maintenance, including valve adjustments, chain replacement, and suspension refreshes.
2. **Rust and Frame Issues** Many examples suffer from rust in the frame, swingarm, or subframe, especially if stored in wet conditions. A thorough inspection is critical.
3. **Outdated Safety Features** Modern safety standards (e.g., ABS, traction control, modern brakes) are absent. The braking system (especially early models) can be inadequate for high-speed on-road use.
4. **Carburetion Challenges** The TS650 uses a carbureted system (often Keihin or Mikuni), which can drift over time, requiring frequent tuning. Fuel quality and altitude can also affect performance.
5. **Suspension Limitations** The original suspension (especially the rear) is stiff by today s standards, leading to a harsher ride on rough terrain. Upgrades (e.g., hlins or modern shocks) are common but costly.
6. **Tire and Braking Limitations** Original tires (e.g., Michelin Star or Dunlop) are worn out, and modern alternatives may not fit perfectly. Braking power is weak compared to modern systems.
7. **Fuel Injection Transition** Later models (1996) introduced fuel injection, but many early TS650s remain carbureted, which can be less reliable in varying conditions.
8. **Parts Availability** While some parts are still available, others (e.g., specific carburetors, OEM suspension components) may require sourcing from specialty shops or eBay.
9. **Comfort for Long Rides** The ergonomics are basic by modern standards, with a higher seat and less wind protection. Panniers or windshields are often added for comfort.
10. **Emissions and Legal Restrictions** Some markets have strict emissions laws, and carbureted bikes may not pass modern testing. Check local regulations before purchasing.
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### **Conclusion**
The Kawasaki TS650 (1987 1996) is a **fantastic choice for enthusiasts** who appreciate classic dual-sport design, reliability, and the joy of riding a bike that bridges the gap between on-road and off-road adventure. It s ideal for those who:
- Enjoy mechanical tinkering and don t mind occasional maintenance.
- Prioritize simplicity and durability over modern conveniences.
- Want a bike that s fun to ride on backroads, trails, and even short commutes.
- Are part of or want to join the adventure biking community.
However, it s **not the best choice** for:- Riders who want a plug-and-play, low-maintenance bike.
- Those who prioritize modern safety features (ABS, traction control).
- People who dislike carburetion or prefer fuel injection.
- Buyers in markets with strict emissions laws or high insurance costs for older bikes.
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### **Recommendation**
If you re considering a TS650, **do the following before buying:**1. **Inspect the Frame** Look for rust, cracks, or weld repairs. A rusted frame is a dealbreaker.
2. **Check the Engine** Ensure the valves are properly adjusted, the pistons and cylinders are in good condition, and there s no excessive wear.
3. **Test the Suspension** Compress the forks and rear shock to check for leaks or excessive play.
4. **Verify the Carburetion** Ensure the carbs are clean and adjust properly. Consider upgrading to aftermarket carbs (e.g., Mikuni TS28 or TS30) if they re problematic.
5. **Inspect the Drivetrain** Replace the chain and sprockets if they re worn. Check the rear sprocket for cracks.
6. **Test Ride Thoroughly** Pay attention to handling, braking, and throttle response. Listen for unusual noises.
7. **Budget for Upgrades** Plan for suspension refreshes, tire replacements, and potential electrical upgrades (e.g., modern lighting, ignition).
8. **Join the Community** Connect with TS650 owners (e.g., through forums like *Kawasaki TS650 Owners Club* or *Adventure Motorcycle Club*) for advice and part sourcing.
**Final Verdict:** If you find a **well-maintained, rust-free example** with a reliable engine and suspension, the TS650 is a **fantastic adventure bike** that offers a unique riding experience. However, be prepared for maintenance and don t expect modern comforts or safety features. For a more hassle-free experience, consider a modern dual-sport like the **KTM 790 Adventure** or **Yamaha T n r 700**, but if you love the classic TS650 spirit, it s a rewarding project bike.
650sx and X2 Jet mate gifts 650 Sc650. Fits all 650cc Jet skis.