YAMAHA 4H7-17582-00-00 Middle Drive Gear 37T

( Manufacturer Part Number: 4H7-17582-00-00 ), ( Part Type: Drive Gear ), ( Manufacturer Warranty: No Warranty ), ( Material: Steel ), ( Universal Fitment: No ), ( Country Of Origin: Japan )

Review YAMAHA Middle Drive Gear 37t fits XJ750J 1982

The **Yamaha 4H7-17582-00-00**, a genuine OEM middle drive gear for the legendary **1982 Yamaha XJ750J**, is a meticulously crafted component designed to restore peak performance and reliability to one of the most iconic adventure motorcycles of the late 1970s and early 1980s. This precision-engineered gear, part of Yamaha s original middle drive assembly, features a **37-tooth design** that seamlessly integrates with the XJ750J s robust five-speed transmission, ensuring smooth and efficient power transfer from the crankshaft to the primary chain. Crafted from high-grade steel, the gear is forged to exacting tolerances, guaranteeing durability under the demanding conditions of both on-road cruising and off-road exploration. The middle drive assembly, including this critical gear, plays a pivotal role in the XJ750J s legendary versatility, allowing riders to tackle everything from winding coastal highways to rugged mountain trails with equal confidence. Whether you re restoring a classic XJ750J to its original glory or upgrading an existing bike for enhanced performance, this OEM part ensures compatibility with Yamaha s original engineering standards, delivering the same reliable power delivery that made the XJ750J a benchmark for adventure motorcycles. Its precise fitment and robust construction make it an essential replacement for riders seeking to maintain the authenticity and performance of their XJ750J, bridging the gap between vintage charm and modern reliability.

### Yamaha XJ750J (1982) Middle Drive Gear (37T) Pros and Cons

#### **Pros**

1. **Classic Design and Build Quality**

The XJ750J is a legendary motorcycle known for its timeless, aggressive styling and robust construction. Yamaha s engineering in the early 1980s was strong, and the bike holds up well for its age, especially if maintained properly.

2. **Reliable Engine**

The 750cc parallel-twin engine is a workhorse, capable of sustained power and smooth operation. With proper care, it can easily run for 100,000 miles. The middle-drive configuration (unlike the later shaft-drive XJ900) reduces weight and improves handling, making it more agile than heavier cruisers.

3. **Good Handling and Ride Quality**

The XJ750J is lighter and more nimble than many of its contemporaries, thanks to its middle-drive setup and relatively compact frame. It rides well on both highways and twisty roads, offering a balanced mix of stability and maneuverability.

4. **Strong Aftermarket Support**

The XJ750J has been around for decades, meaning parts, modifications, and restoration resources are widely available. Engines, frames, and components can be sourced relatively easily, and there s a large community of enthusiasts who share knowledge and upgrades.

5. **Potential for Performance Upgrades**

The engine can be tuned for more power with relatively simple modifications (e.g., camshafts, headers, or fuel injection retrofits). The middle-drive layout also allows for easier suspension and drivetrain upgrades compared to shaft-drive bikes.

6. **Nostalgia and Collectibility**

For riders who appreciate classic motorcycles, the XJ750J is a sought-after model with a strong following. Its rarity (especially in good condition) adds to its appeal for collectors and enthusiasts.

7. **Simpler Maintenance Than Some Modern Bikes**

While not as straightforward as a modern bike, the XJ750J s mechanical simplicity means many repairs can be done with basic tools. Unlike some modern bikes with complex electronics, the XJ750J relies on proven mechanical systems.

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#### **Cons**

1. **Age and Wear**

The bike is nearly 40 years old, meaning it will require significant maintenance to keep it running reliably. Rust, worn-out suspension, and aging components (e.g., clutch, bearings, seals) are common issues that need addressing.

2. **Fuel Injection Retrofit Required for Modern Use**

The original carbureted setup is inefficient and unreliable in today s fuel standards. Retrofitting fuel injection (e.g., with a system like EFI or a modern throttle body) is expensive and technically challenging but necessary for safe, efficient operation.

3. **High Maintenance Costs**

Parts for a 1982 bike can be costly, especially if they re not readily available. Custom or aftermarket parts may be required, adding to the expense. Labor costs for restoration or repairs can also be significant.

4. **Potential for Hidden Damage**

Older bikes often have unseen issues, such as frame cracks, rust in critical areas, or worn-out internals. A thorough inspection by a trusted mechanic is essential before purchasing to avoid costly surprises.

5. **Reliability Concerns Without Proper Care**

If the bike has been neglected, it may have major issues like seized engines, failed transmissions, or electrical problems. Even with care, the XJ750J is not as reliable as a modern bike and requires more frequent attention.

6. **Safety and Modern Standards**

The XJ750J lacks modern safety features like ABS, traction control, or advanced braking systems. Its braking and suspension may not meet today s safety expectations, especially at higher speeds or in aggressive riding conditions.

7. **Resale Value and Depreciation**

While the XJ750J is a classic, its resale value is not as strong as some modern bikes or even other classics. The cost of ownership (parts, labor, fuel) may outweigh the enjoyment for some riders.

8. **Weight and Comfort**

While lighter than many cruisers, the XJ750J is still heavier than modern sportbikes or naked bikes. The ergonomics may not suit all riders, especially those who prioritize comfort on long rides.

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### **Conclusion**

The Yamaha XJ750J (1982) is a fantastic motorcycle for enthusiasts who appreciate classic design, mechanical simplicity, and the challenge of maintaining a vintage bike. It offers a unique riding experience with a balance of power, handling, and character that modern bikes often lack. However, it comes with significant drawbacks, particularly in terms of maintenance costs, reliability, and the need for modern upgrades to make it safe and efficient for today s riding conditions.

If you re looking for a **project bike** with a strong following, a passion for restoration, and the willingness to invest time and money into bringing it back to life, the XJ750J can be an incredibly rewarding purchase. On the other hand, if you prioritize **convenience, reliability, and modern safety features**, this bike may not be the best choice.

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### **Recommendation**

- You have experience with classic motorcycles or are willing to learn.

- You re prepared to invest in a full restoration or at least a major overhaul (engine, suspension, electrical, fuel system).

- You enjoy the challenge of maintaining a vintage bike and appreciate its unique character.

- You plan to ride it occasionally rather than as a daily commuter or long-distance machine.

- You re okay with higher maintenance costs and the potential for unexpected repairs.

- You re looking for a low-maintenance, reliable bike with modern features.

- You don t have the time, budget, or mechanical skills to handle a major restoration.

- You prioritize safety and efficiency over nostalgia (e.g., you d rather have ABS, fuel injection, and modern brakes).

- You re not prepared for the possibility of hidden damage or costly repairs.

- A **Yamaha XJ600S** (similar middle-drive layout, easier to maintain).

- A **Yamaha XS650** (more modern, still classic, with better reliability).

- A **modern naked bike** (e.g., Yamaha MT-07, Kawasaki Ninja 400) for a balance of classic styling and modern convenience.

Ultimately, the XJ750J is a bike for those who love the past and are willing to embrace its quirks. For everyone else, it may be better to seek a more modern or lower-maintenance alternative.

Details:

1982 Yamaha XJ750J middle drive gear 4H7-17582-00- 37T.

part #: 4h7175820000 price

• $35.99

specifications transmissioncycleoi:

• for models: Xj750j
• for makes: Yamaha
• for years: 1982
• mpn: 4h7-17582-00-00
• part type: Drive Gear
• manufacturer warranty: No Warranty
• material: Steel
• universal fitment: No
• country of origin: Japan

payments transmissioncycleoi:

• credit card: Discover
• wallet: Apple-pay
• other

returns transmissioncycleoi:

• policy: No Returns

seller transmissioncycleoi:

• city: Eau Claire, Wisconsin
• # reviews: 718
• rating: 99.0%

shipping transmissioncycleoi:

• class: Standard
• transit: 3-5 Days
• cost: $0.00
• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage

offer transmissioncycleoi:

• started: January 31, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

general transmissioncycleoi:

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

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