YAMAHA 90508-10338-90508-10337 Nos Suspension Torsion SPRINGS-1977-1984 Et250et300

( Manufacturer Part Number: 90508-10338-90508-10337 ), ( Part Type: Suspension ), ( Country Of Origin: Japan )

Review YAMAHA Nos Pair Snowmobile Suspension Torsion Springs-1977-1984 Et250et300

The **Yamaha 90508-10338 and 90508-10337 suspension torsion springs** are meticulously engineered components designed exclusively for the **1977 1984 Yamaha ET250 and ET300** enduro motorcycles, ensuring optimal handling, stability, and rider comfort across rugged off-road terrain. These springs are part of the bike s front suspension system, where precision and durability are paramount, and they play a critical role in absorbing shocks from uneven surfaces, bumps, and rough trails while maintaining consistent wheel contact with the ground. Crafted from high-grade, heat-treated steel, these torsion springs are built to withstand the demanding stresses of off-road riding, providing reliable performance over thousands of miles without sagging or losing resilience. The **90508-10338** and **90508-10337** refer to specific spring configurations tailored to the unique suspension geometry of the ET250 and ET300, respectively, ensuring a perfect fit and proper tension for each model. Whether tackling steep climbs, tight switchbacks, or deep ruts, these springs work in tandem with the bike s fork to deliver a smoother, more controlled ride, reducing fatigue for the rider while enhancing traction and maneuverability. For owners seeking to restore their classic Yamaha enduro to factory specifications or upgrade for improved off-road capability, these OEM-quality torsion springs are an essential replacement part, offering the same level of performance and reliability as the original equipment. Proper installation requires careful attention to torque specifications and alignment, as even slight misalignment can compromise suspension function and handling. Ideal for restorers, collectors, and enthusiasts who demand authenticity and performance, these springs are a testament to Yamaha s engineering legacy in the world of adventure motorcycling.

### Pros and Cons of Buying Used Yamaha ET250/ET300 Suspension Torsion Springs (Part Numbers: 90508-10338 and 90508-10337, 1977 1984 Models)

1. **Cost-Effective Replacement** Purchasing used torsion springs can be significantly cheaper than buying new OEM parts, especially if you re on a tight budget. This can save you hundreds of dollars compared to brand-new components.

2. **Functionality and Fit** These springs are designed specifically for the Yamaha ET250/ET300, ensuring a proper fit and intended performance. They will restore the suspension s intended ride quality and handling characteristics.

3. **Easier to Find Than Full Suspension Kits** While full suspension rebuilds can be complex, individual torsion springs are simpler to source and install, making them a practical choice for DIYers or those who only need to address suspension issues.

4. **Compatibility with Aftermarket Mods** If you plan to upgrade other suspension components (e.g., shocks, bushings, or linkages), these springs can serve as a solid foundation for a custom setup.

5. **Prevents Further Damage** A failing suspension can lead to misaligned components, premature wear on other parts (e.g., swingarm, frame, or rear axle), and even handling issues. Replacing worn springs can prevent these problems.

6. **Potential for Customization** If you re comfortable with suspension tuning, you can experiment with spring rates (though these are stock parts, they may inspire you to explore aftermarket options later).

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1. **Unknown Service History** Used parts may have unseen damage, such as cracks, corrosion, or fatigue from previous misuse or improper installation. This could lead to premature failure if not inspected thoroughly.

2. **Potential for Mismatched Pairs** If buying from a lot or private seller, there s a risk the springs may not be an exact match (e.g., one could be slightly weaker or stronger than the other), leading to uneven suspension performance.

3. **Lack of Warranty** Unlike new parts, used torsion springs typically come with no warranty. If they fail shortly after installation, you ll be responsible for replacement costs.

4. **Installation Complexity** While simpler than a full suspension rebuild, torsion springs require careful alignment and torqueing to the correct specifications. Improper installation can lead to binding, poor handling, or even damage to the suspension components.

5. **Risk of Counterfeit or Salvage Parts** Some sellers may offer "used" parts that are actually salvaged from wrecked bikes or reconditioned poorly. Always verify the source and inspect the springs for signs of wear or damage.

6. **Limited Longevity** Even if the springs appear serviceable, their remaining lifespan depends on how they were treated previously. They may not last as long as new parts, especially if the bike sees heavy use.

7. **Additional Costs** Beyond the springs, you may need to budget for tools (e.g., spring compressor, torque wrench), lubricants, and possibly other suspension components (e.g., shocks, bushings) if they re worn.

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Buying used Yamaha ET250/ET300 torsion springs can be a **smart financial decision** if you prioritize cost savings and are willing to take precautions to ensure quality. They are a practical solution for restoring suspension function, especially if you re comfortable inspecting parts or have access to a trusted mechanic. However, the risks of hidden damage, mismatched pairs, or poor longevity mean you must approach the purchase with caution.

**If you re unsure about the condition of the springs or lack experience with suspension work, it may be safer to invest in new OEM or high-quality aftermarket parts** to avoid potential issues down the line. Always inspect the springs for:

- Visible cracks or corrosion.

- Consistent tension (they should feel firm and uniform when compressed).

- Proper labeling and part numbers to confirm authenticity.

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1. **Verify the Source** Purchase from a reputable seller (e.g., a trusted bike parts dealer, eBay with positive feedback, or a mechanic you trust) rather than a random lot or private sale with no history.

2. **Inspect Thoroughly** Test the springs for flexibility, check for rust or damage, and ensure they match the correct part numbers for your model year.

3. **Consider New or Aftermarket Alternatives** If budget allows, new OEM springs (e.g., from Yamaha or a supplier like **Yamaha Parts Center**) or aftermarket options (e.g., **Progressive Suspension, Pro Circuit**) may offer better peace of mind with warranties.

4. **Budget for Installation** If you re not experienced, factor in labor costs or the time required to install them properly.

5. **Pair with Other Suspension Checks** While replacing the springs, inspect and replace any worn bushings, shocks, or linkages to ensure a complete suspension refresh.

**Final Verdict:** Used torsion springs are a **viable option for budget-conscious riders** who are diligent in their selection and inspection. However, if reliability and warranty coverage are priorities, new or aftermarket parts may be the safer choice. Always weigh the cost savings against the potential risks before purchasing.

Details:

NOS 1 pair Yamaha snowmobile suspension torsion springs.1977-1984 ET250-ET3 May fit others. Bags are torn and dirty.

part #: 90508-10338-90508-10337 prices

• $49.95-$99.95

specifications snowmobileshocksoi:

• for makes: Yamaha
• mpn: 90508-10338-90508-10337
• part type: Suspension
• country of origin: Japan

payments snowmobileshocksoi:

• money order
• wallet: Apple-pay
• credit card: Mastercard
• other

returns snowmobileshocksoi:

• time: 14 Days
• policy: Returns Accepted
• paid by: Buyer

shipping snowmobileshocksoi:

• cost: $21.95
• transit: 4-8 Days
• class: Expedited
• service: USPS Priority Mail
• type: Fixed
• carrier: USPS

general snowmobileshocksoi:

• Parts Accessories > Snowmobile Parts > Shocks Suspension
• condition: Used

offer snowmobileshocksoi:

• started: April 27, 2026
• quantity: 1
• availability: In Stock
• sold: 0
• options: Ship-to-home

seller snowmobileshocksoi:

• city: Waterville, Maine
• rating: 100.0%
• # reviews: 6678

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