fits make: Kawasaki.

( Manufacturer Part Number: 16021-1042 ), ( Part Type: Throttle Screw Stop )
The **Kawasaki 16021-1042 Throttle Screw (NOS New Old Stock)** is a meticulously preserved, high-performance component designed for Kawasaki engines, particularly those found in classic and modern outboard motors, ATVs, and small gasoline-powered equipment. Crafted from durable, corrosion-resistant materials, this throttle screw is engineered to ensure smooth, responsive throttle control while maintaining optimal engine efficiency. The part is sourced from a reputable supplier specializing in genuine, never-used components, guaranteeing that it arrives in pristine condition with no signs of wear, rust, or damage. Its precise machining and tight tolerances ensure a perfect fit, allowing for seamless integration into the engine s carburetion system, whether it s a two-stroke or four-stroke setup. Ideal for enthusiasts seeking to restore or upgrade their Kawasaki-powered machinery, this NOS throttle screw is a critical piece for maintaining peak throttle response, preventing stalling, and ensuring consistent power delivery. Whether used in a vintage watercraft, a lawnmower, or an ATV, this component exemplifies Kawasaki s commitment to performance and reliability, making it a must-have for mechanics and hobbyists who demand authenticity and quality in their restorations.
### **Pros and Cons of Buying a Kawasaki 16021-1042 Throttle Screw (NOS New Old Stock)**
#### **Pros:**1. **Authentic OEM Replacement** The 16021-1042 is an original Kawasaki throttle screw, ensuring a perfect fit and compatibility with Kawasaki engines, particularly older models like the 1990s 2000s 250cc 400cc two-strokes (e.g., GPZ500, Z1, ZX-6R, or Ninja 250/600).
2. **Reliable Performance** Throttle screws from this era are known for smooth operation, reducing throttle lag and improving responsiveness compared to aftermarket alternatives that may not match the original design.
3. **Durability** Kawasaki parts from this period were built to last, often made from high-quality materials like brass or stainless steel, which can withstand wear better than cheaper modern knockoffs.
4. **Easier Maintenance** Since it s a direct replacement, mechanics familiar with older Kawasaki models will have no trouble installing or adjusting it.
5. **Nostalgia & Collectibility** For enthusiasts restoring classic bikes, NOS parts add authenticity and historical value, especially if the bike is a project or showpiece.
6. **Potential for Resale Value** If the bike is rare or well-maintained, NOS parts can increase its collectible worth over time.
7. **Compatibility with Upgrades** Works seamlessly with other NOS or high-quality aftermarket components (e.g., carburetors, linkages) without compatibility issues.
#### **Cons:**1. **Age-Related Wear** Even as "new old stock," the part may show minor signs of age (e.g., slight corrosion, wear marks) if stored improperly. Some NOS items are "as-is," meaning they may not be pristine.
2. **Limited Availability** Kawasaki no longer produces this exact part, so sourcing may require searching eBay, specialty forums, or junkyards, which can be time-consuming or expensive.
3. **Price Premium** NOS parts often cost more than new aftermarket alternatives due to demand and perceived value. For example, a 16021-1042 might sell for $30 $80, whereas a modern replacement could be $10 $20.
4. **Potential for Counterfeits** The NOS market is flooded with fakes, especially on platforms like eBay. Buyers must verify authenticity through seller reputation, photos, or third-party inspection.
5. **Compatibility with Modern Mods** If the bike has been heavily modified (e.g., high-performance carburetors, electronic ignition), the original throttle screw might not integrate as smoothly as a modern alternative.
6. **Storage & Handling Risks** If the part was stored in a humid environment, it could develop rust or corrosion, requiring cleaning before installation.
7. **Learning Curve for Installation** Older throttle mechanisms (e.g., cable-operated systems) may require more precise adjustment than modern twist-grip setups, which could be challenging for inexperienced DIYers.
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### **Conclusion**
The Kawasaki 16021-1042 throttle screw is an excellent choice if you prioritize **authenticity, reliability, and historical accuracy** for a classic bike. Its OEM quality ensures a seamless fit and performance, making it ideal for restorations or enthusiasts who value original components. However, the **higher cost, limited availability, and risk of counterfeits** mean it s not always the most practical option for budget-conscious or heavily modified bikes.
For **modern or heavily tuned bikes**, a high-quality aftermarket replacement (e.g., from brands like **Kawasaki, Mikuni, or Walbro**) may offer better value without sacrificing performance. If you re restoring a **show bike or a rare classic**, the 16021-1042 is worth the investment for its authenticity.
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### **Recommendation**
- **Buy NOS if:**- You re restoring a **classic Kawasaki** (1990s early 2000s) and want OEM parts.
- You re willing to pay a premium for **historical accuracy** and don t mind sourcing from trusted sellers.
- The bike is a **collector s item**, and NOS parts enhance its value.
- **Skip NOS if:**- You re on a **tight budget** or the bike is heavily modified (aftermarket parts may work better).
- You can t verify the part s **authenticity** (avoid untested sellers).
- You prefer **modern alternatives** that may be easier to find and install.
**Best Approach:**- **Check multiple sellers** (eBay, Facebook Marketplace, specialty forums like **Cycle World Classifieds** or **Motorcycle Static**).
- **Verify authenticity** by comparing part numbers, checking for rust, and confirming the seller s reputation.
- **Consider a backup plan** (e.g., a compatible aftermarket part) in case the NOS item doesn t meet expectations.
For most modern riders, a **reputable aftermarket throttle screw** (e.g., a **Kawasaki replacement** or **Mikuni part**) offers a cost-effective alternative without sacrificing performance. However, for purists, the 16021-1042 remains a premium choice.
If the original package is included it may show signs of wear. Items are shipped using USPS, UPS, and FedEx. New OEM Kawasaki 16021-1042 Throttle Stop Screw NOS.
All parts are in stock and ready to ship. Throttle Stop Screw is new and in excellent condition, original packaging.