YAMAHA 3Y1-11454-00-00 Motor Crank Shaft Counter Balance

( Manufacturer Part Number: 3Y1-11454-00-00 ), ( Type: Balancer ), ( Vintage Part: Yes ), ( Country Of Origin: Japan )

Review YAMAHA Motor Crank Shaft Counter Balance fits TT250 1980

The **Yamaha 3Y1-11454-00-00 1980 TT250 Motor Crankshaft Counterbalance** is a meticulously engineered, high-performance component designed exclusively for Yamaha s legendary TT250 twin-cylinder motorcycle, originally produced in the early 1980s. This precision-crafted counterbalance weight is a critical part of the engine s crankshaft assembly, playing a vital role in balancing rotational forces to minimize vibration, enhance smoothness, and extend the longevity of the drivetrain. Crafted from high-grade cast iron, the component exhibits a robust, durable construction that ensures resilience against the stresses of high-revving performance and prolonged use. Its unique design features a symmetrical, weighted shape that precisely counteracts the inertia of the crankshaft s offset main journals, reducing harmful vibrations that could otherwise lead to premature wear on bearings, seals, and other internal engine components. This part is an essential replacement for restoring or maintaining the original performance and reliability of the TT250 s iconic 249cc air-cooled twin-cylinder engine, which was renowned for its agile handling and spirited acceleration in its era. Whether used in a classic restoration project or as part of a thorough engine rebuild, this counterbalance weight ensures that the TT250 s legendary character blending raw power with effortless refinement remains intact for generations of enthusiasts. Its compatibility with the 1980 model s specific crankshaft configuration makes it a must-have for those seeking to preserve or revive the mechanical integrity of this timeless motorcycle.

### **Pros and Cons of buying a Yamaha TT250 (1980) Motor Crankshaft Counterbalance (Part #3Y1-1-11454-00-00)**

1. **Authentic Replacement Part** This is an original Yamaha OEM (Original Equipment Manufacturer) counterbalance for the 1980 TT250, ensuring a perfect fit and compatibility with the engine s design.

2. **High-Quality Material** Yamaha parts are known for durability and precision engineering, which helps maintain the engine s performance and longevity.

3. **Reliability** Since the TT250 is a classic bike, finding exact OEM parts is crucial for proper function. This part will work seamlessly without modifications.

4. **Prevents Engine Damage** A worn or missing counterbalance can cause excessive vibration, leading to premature wear on bearings, seals, and other components. Replacing it ensures smooth operation.

5. **Resale Value Preservation** If you plan to restore or sell the bike later, using OEM parts helps maintain its authenticity and value.

6. **Ease of Installation** As a direct replacement, it should fit without requiring machining or customization, assuming the rest of the crankshaft assembly is intact.

1. **Age and Wear** Since this is a used or refurbished part (unless purchased new from a Yamaha dealer), it may have some wear or signs of previous use, depending on the source.

2. **Limited Availability** Finding an exact OEM part for a 40-year-old bike can be challenging, and prices may be higher due to scarcity.

3. **Cost** Compared to aftermarket or replica parts, OEM Yamaha components can be expensive, especially if sourced from a reputable dealer.

4. **Potential for Counterfeit Parts** If purchasing from an unverified seller, there is a risk of receiving a knockoff or poorly made replica that could fail prematurely.

5. **Engine Condition Dependency** If the rest of the crankshaft or engine is worn, replacing just the counterbalance may not fully resolve vibration issues. A full crankshaft inspection may be needed.

6. **Installation Expertise Required** While the part itself is straightforward, improper installation (e.g., incorrect balancing or torque specifications) could lead to further damage.

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### **Conclusion**

Buying the **Yamaha 3Y1-1-11454-00-00 counterbalance** for your 1980 TT250 is a **strong choice** if you prioritize authenticity, reliability, and long-term engine health. The part is essential for reducing vibration and preventing costly damage, and using an OEM component ensures compatibility and performance. However, the **cost, availability, and potential for counterfeit parts** are significant drawbacks that must be carefully considered.

If you can source the part from a **trusted Yamaha dealer, a reputable classic bike parts supplier, or a verified seller with a return policy**, the benefits outweigh the risks. If budget is a concern, carefully evaluate aftermarket alternatives (though they may not fit as precisely), or consider restoring the part if it s in good condition.

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### **Recommendation**

1. **Verify the Part s Authenticity** Purchase from a **Yamaha dealer, a trusted classic motorcycle parts specialist, or a seller with a proven track record** (e.g., eBay verified, dedicated bike forums, or specialty shops).

2. **Check Engine Condition First** Before replacing just the counterbalance, ensure the **crankshaft bearings, seals, and other components** are in good shape to avoid recurring issues.

3. **Budget Accordingly** If the part is expensive, weigh it against the **long-term cost of engine failure** from neglecting this critical component.

4. **Consider Professional Installation** If you re not experienced with engine work, have a **mechanic with classic bike expertise** install it to ensure proper balancing and torque.

5. **Document the Part s Condition** If buying used, inspect it for **cracks, wear, or imbalance** before purchasing. A lightly used part may still be a good investment.

**Final Verdict:** **Worth it for authenticity and reliability**, but **only if sourced carefully and paired with proper engine maintenance**. If the bike is a restoration project, this part is a **necessary investment** to preserve its performance and value.

Details:

The product is a vintage Yamaha TT250 TT 250 and XT250 XT motor crank shaft counter balance, made in Japan. Perfect for owners looking to restore or maintain the original look and functionality of their vintage Yamaha motorcycles.PERFECT. From a lightly used bike that had been garaged its entire life. It is a genuine Yamaha part with the manufacturer number 3Y1-11454-00-00.

part #: 3y1114540000 prices

• $6.47-$25.00

specifications cyclevintagee:

• for models: Tt250
• for makes: Yamaha
• for years: 1980
• mpn: 3y1-11454-00-00
• type: Balancer
• vintage part: Yes
• country of origin: Japan

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

shipping cyclevintagee:

• cost: $14.65
• carrier: USPS
• type: Fixed
• class: Standard
• transit: 4-10 Days
• service: USPS Ground Advantage

seller cyclevintagee:

• city: Clayton, Indiana
• # reviews: 580
• rating: 98.3%

offer cyclevintagee:

• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: February 2, 2026
• quantity: 1
• sold: 0

returns cyclevintagee:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

payments cyclevintagee:

• other
• credit card: Diners-club
• wallet: Apple-pay

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