fits make: Yamaha. year: 2020.

( Manufacturer Part Number: 1WS-81450-01-00 ), ( Part Type: Bearing Flywheel Starter Clutch Gear )
The **Yamaha 1WS-81450-01-00 20MT07 Flywheel Starter Clutch Bearing Gear Assembly** is a precision-engineered component designed exclusively for Yamaha motorcycles, specifically tailored to the 20MT07 engine family, which includes models like the MT-07 and other high-performance bikes within this series. This critical assembly serves as the backbone of the motorcycle s starting system, integrating the flywheel, starter clutch, bearing, and gear into a single, seamless unit to ensure smooth and reliable engine cranking. Crafted from high-grade materials, including durable steel and reinforced bearings, this component is built to withstand the intense rotational forces and heat generated during repeated starts, even under demanding riding conditions. The flywheel itself is meticulously balanced to minimize vibration, contributing to a quieter, more refined riding experience while maintaining optimal power transfer from the starter motor to the engine s crankshaft. The integrated starter clutch ensures a clean engagement between the starter gear and the flywheel, preventing backlash and ensuring consistent cranking performance, which is vital for quick, reliable starts in all weather conditions. The precision-machined gear is designed to mesh seamlessly with the engine s starter mechanism, reducing wear on both the gear and the flywheel over time. This assembly is a direct-fit replacement, meaning it is engineered to match the exact specifications of the original equipment, ensuring compatibility without the need for modifications. Whether used in a routine maintenance upgrade or as a replacement for a worn-out component, this flywheel starter clutch bearing gear assembly is a testament to Yamaha s commitment to performance, durability, and engineering excellence, providing motorcycle owners with a reliable solution that enhances both functionality and longevity.
### **Pros and Cons of buying a Yamaha 1WS-81450-01-00 (MT07 Flywheel Starter Clutch Bearing Gear) Kit**
#### **Pros:**1. **Direct OEM Fitment** This is a genuine Yamaha replacement part designed specifically for the MT07 (and related models like the MT-07, MT-07C, and MT-07S). It ensures proper fitment without modifications, reducing the risk of installation issues.
2. **High-Quality Materials** Yamaha uses durable components in their aftermarket parts, including reinforced bearings, clutch springs, and flywheel gears. This improves longevity compared to cheaper third-party alternatives.
3. **Complete Kit** The part number **1WS-81450-01-00** typically includes:- Flywheel
- Starter clutch
- Bearing assembly
- Gear assembly
- Relevant seals and fasteners
This eliminates the need to source individual components separately.
4. **Reliability** Yamaha s reputation for motorbike components means this part is less likely to fail prematurely, especially if installed correctly. It s a trusted choice for riders who prioritize durability.
5. **Ease of Installation** Since it s a direct replacement, experienced mechanics or DIY riders with basic tools can install it without major modifications. Yamaha s design aligns with the stock setup, simplifying the process.
6. **Warranty Coverage** Purchasing from an authorized Yamaha dealer or distributor may include warranty protection, offering peace of mind against defects.
7. **Performance Consistency** Unlike aftermarket parts that may vary in quality, this part maintains the MT07 s original performance characteristics, ensuring smooth clutch engagement and reliable starting.
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#### **Cons:**1. **Higher Cost** Compared to generic or third-party starter clutch/flywheel kits, Yamaha s OEM parts are more expensive. This can be a significant investment, especially if the part fails due to external factors (e.g., rider abuse, poor maintenance).
2. **Limited Availability** Depending on your location, finding an authorized Yamaha dealer may require extra effort. Online retailers might have longer shipping times or higher prices due to import fees.
3. **Potential Overkill for Minor Issues** If the failure was isolated to just the clutch or bearing (rather than the entire assembly), buying the full kit might be unnecessary. In such cases, a partial replacement (e.g., just the clutch or bearing) could be more cost-effective.
4. **Installation Complexity** While straightforward, replacing the flywheel requires removing the engine from the frame (on most MT07 models). This demands mechanical skill, proper tools (e.g., flywheel puller, torque wrench), and patience. Improper installation (e.g., misaligned flywheel, overtightened bolts) can cause further damage.
5. **Weight Consideration** The flywheel is a heavy component. If you ve previously modified your bike for lighter weight (e.g., aftermarket flywheels), this OEM part may feel heavier, potentially affecting throttle response slightly.
6. **No Upgrades** Unlike aftermarket alternatives, this part does not offer performance upgrades (e.g., lighter flywheel, stronger clutch springs). If you re looking for improved power delivery or durability beyond stock specs, you ll need to explore non-Yamaha options.
7. **Depreciation Risk** If you plan to sell the bike later, the cost of this OEM part may not be fully recouped in resale value, especially if the bike is not well-maintained.
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### **Conclusion**
The **Yamaha 1WS-81450-01-00 flywheel starter clutch bearing gear kit** is a **highly reliable, direct-fit solution** for MT07 owners who prioritize authenticity, durability, and ease of installation. It s ideal if:
- You want a **genuine Yamaha part** with no compatibility issues.
- You re replacing a **completely failed assembly** (not just a single component).
- You have **mechanical experience** or access to a professional mechanic.
- You re willing to **invest in quality** for long-term reliability.
However, if you re on a **tight budget**, the part is **isolated to a single component** (e.g., just the clutch or bearing), or you re seeking **performance upgrades**, third-party alternatives (e.g., from reputable brands like **Sachs, DID, or local manufacturers**) might offer better value.
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### **Recommendation**
- **Buy the Yamaha kit if:**- You need a **complete, trusted replacement** for your MT07 s flywheel/starter clutch assembly.
- You re comfortable with the **higher cost** in exchange for reliability.
- You re installing it yourself or with a **trusted mechanic**.
- **Consider alternatives if:**- You only need to replace **one component** (e.g., just the clutch or bearing).
- You re looking for **lighter weight or performance upgrades**.
- You want to **save money** and are okay with third-party brands (ensure they re well-reviewed and compatible).
**Final Note:** Always inspect the **condition of the engine mounts, crankshaft, and transmission** during installation, as these can affect the flywheel s performance. Regular maintenance (e.g., checking clutch wear, lubricating bearings) will extend the life of this or any replacement part.
Items are shipped using USPS, UPS, and FedEx. Starter clutch is in good shape. Was removed from a 2020 Yamaha MT07. Comes as pictured.
Flywheel is in good working condition.