fits model: Fz600, Fz, 600. make: Yamaha. year: 1986.

( Part Type: Bolt ), ( Oe/oem Part Number: 91317-10020-00 ), ( UPC: 913171002000 )
The **Yamaha 91317-10020-00** is a meticulously engineered rear axle bolt set specifically designed for the **1986 Yamaha FZ600 (FZ 600)**, a classic sport-touring motorcycle renowned for its balance of performance, comfort, and durability. These high-quality bolts are a critical component of the rear suspension system, ensuring proper alignment, stability, and load-bearing capacity under the demanding conditions of both urban commuting and spirited highway riding. Crafted from Yamaha s proprietary **Grade 8.8 or higher alloy steel**, these bolts are heat-treated to achieve an optimal balance of strength and resistance to fatigue, corrosion, and stress qualities essential for maintaining the structural integrity of the rear swingarm and axle assembly over time. The **precision-machined threads** and **smooth, polished finishes** guarantee a secure, vibration-free fit, reducing the risk of loosening or stripping, even after prolonged exposure to harsh weather or aggressive riding. Whether you're restoring a vintage FZ600 to its original glory or upgrading an existing bike for enhanced reliability, these bolts serve as an indispensable replacement part, offering a direct, OEM-level solution that aligns with Yamaha s engineering standards. Their compatibility extends beyond the 1986 model, making them a versatile choice for similar years within the FZ600 series, and their robust construction ensures they will withstand the rigors of daily use, long-term storage, or even aftermarket modifications. For riders who demand precision and performance, these rear axle bolts represent a small yet vital investment in the longevity and safety of their motorcycle.
### **Pros and Cons of Buying Yamaha 91317-10020-00 (1986 FZ600/FZ600R Rear Bolts)**
#### **Pros:**1. **Authentic Fitment** These bolts are designed specifically for the 1986 Yamaha FZ600/FZ600R, ensuring a perfect match with no modifications required.
2. **Durability** Yamaha parts are generally built to last, especially if they are original or high-quality aftermarket replacements.
3. **Easy Installation** Since they are direct replacements, they should fit without the need for machining or additional tools.
4. **Reliability** The FZ600 is a well-known motorcycle, and Yamaha parts are often reliable for long-term use.
5. **Cost-Effective** Compared to buying a full rear wheel assembly, these bolts are a low-cost solution for a common wear issue.
6. **Prevents Further Damage** If the original bolts were stripped or broken, replacing them can prevent wheel detachment or suspension damage.
#### **Cons:**1. **Age of the Part** The 1986 model year means these bolts may be older stock, potentially leading to rust or wear if stored improperly.
2. **Availability of Alternatives** Some aftermarket brands may offer slightly better materials (e.g., stainless steel) for improved corrosion resistance.
3. **Potential for Counterfeit Parts** If purchasing from a third-party seller, there is a risk of receiving non-genuine or low-quality replicas.
4. **No Warranty (If Purchased Used/Third-Party)** If buying from a non-Yamaha source, there may be no warranty or return policy.
5. **Mismatched Threads (If Incorrect Model)** Double-checking the exact part number is crucial, as slight variations in bolt size or thread pitch could cause issues.
6. **Additional Wear Items** If the bolts were stripped due to excessive use, other components (e.g., suspension bushings, wheel bearings) may also need attention.
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### **Conclusion:**The **Yamaha 91317-10020-00 rear bolts** are a straightforward and cost-effective solution for restoring proper function to a 1986 FZ600/FZ600R s rear suspension or wheel assembly. They are a reliable choice if you need an exact fit and are purchasing from a trusted source (e.g., a Yamaha dealer or reputable parts seller).
However, if you suspect corrosion or poor condition due to age, consider inspecting them closely before installation. For long-term durability, stainless steel or high-strength aftermarket alternatives may be worth the slight extra cost.
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### **Recommendation:**- **Buy from a trusted source** (Yamaha dealer, reputable motorcycle parts retailer) to ensure authenticity.
- **Inspect the bolts** for rust, cracks, or wear before installation.
- **Check for accompanying wear items** (e.g., bushings, bearings) if the bolts were stripped due to excessive use.
- **Consider aftermarket options** if you want improved corrosion resistance or higher strength.
- **Document the purchase** in case warranty or return issues arise.
If the bolts are in good condition and properly fitted, they will serve their purpose effectively. Otherwise, prioritize quality over cost to avoid future failures.
We primarily use USPS and UPS as our shipping companies. MOTOR# 2AX-002400. MAY ALSO FIT: 2025. 1986 Yamaha FZ600 FZ 600 rear subframe bolts.