YAMAHA 90109-081G2-00 Bolt

( Manufacturer Part Number: 90109-081G2-00 ), ( Part Type: Bolt ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Country Of Origin: Japan )

Review YAMAHA Vintage Oem Bolt fits TT600N 1985

The **Yamaha TT600N Bolt (Model 90109-081G2-00, circa 1985)** is a legendary example of Yamaha s groundbreaking engineering from the golden era of adventure touring motorcycles. This iconic machine represents the pinnacle of the TT600 series, a platform that revolutionized the sport-touring segment with its uncompromising blend of performance, durability, and practicality. Built to conquer both paved roads and rugged off-road trails, the TT600N Bolt stands as a testament to Yamaha s commitment to versatility, offering a refined yet rugged riding experience that remains unmatched in its class. Its air-cooled, parallel-twin engine displacing 599cc delivers a balanced power delivery of approximately 50 horsepower and 40 lb-ft of torque, striking a perfect equilibrium between throttle response and low-end torque for effortless cruising and spirited acceleration. The engine s robust construction, featuring a cast-iron cylinder block and head, ensures longevity and resilience, while the triple-carburetor setup (comprising three 28mm Mikuni round slide carbs) provides precise fuel delivery, allowing riders to fine-tune performance with ease.

Mechanically, the TT600N Bolt is a marvel of simplicity and reliability, featuring a five-speed manual transmission with a smooth-shifting, foot-operated clutch and a sturdy shaft drive system that minimizes maintenance while maximizing durability. The suspension is equally impressive, with a 41mm telescopic front fork and a dual-shock rear suspension, both of which are adjustable to accommodate a wide range of riding conditions whether tackling twisty mountain roads or absorbing the jolts of rough terrain. The hydraulic disc brakes, with a single front rotor and a drum brake at the rear, offer reliable stopping power, though they are complemented by the bike s inherent stability and balanced weight distribution, which enhances rider confidence in all situations.

The TT600N Bolt s design is a harmonious fusion of functionality and aesthetics, embodying the bold, angular styling that defined Yamaha s adventure bikes of the era. Its sleek, angular fairings including a prominent windscreen and integrated luggage mounts provide practical protection against the elements while maintaining a sporty, aggressive silhouette. The bike s ergonomics are thoughtfully tailored for both comfort and control, with an upright riding position that reduces fatigue on long journeys and a low seat height that makes it accessible to a broad range of riders. The durable steel frame, reinforced with a subframe for added rigidity, ensures structural integrity, while the bolt-on construction allows for easy modifications and customizations, a hallmark of Yamaha s practical approach to motorcycle design.

Beyond its technical specifications, the TT600N Bolt holds a special place in motorcycle history as one of the first true adventure bikes, paving the way for modern dual-sport and tourer models. Its legacy lies not only in its performance but in its adaptability capable of effortlessly transitioning from highway cruising to off-road exploration without sacrificing comfort or control. Whether used for daily commuting, weekend adventures, or long-distance touring, the TT600N Bolt offers a timeless riding experience that bridges the gap between sport and utility. For enthusiasts seeking a machine that embodies the spirit of exploration and the enduring appeal of classic engineering, the Yamaha TT600N Bolt remains an unparalleled choice a true icon of its era and a testament to Yamaha s innovative vision.

The Yamaha TT600N Bolt, specifically the model **Yamaha 90109-081G2-00** from **1985**, is a classic trail bike known for its reliability, simplicity, and off-road capabilities. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros of the Yamaha TT600N Bolt (1985 Model)**

1. **Proven Reliability and Durability**

The TT600N Bolt was designed for rugged use, and its air-cooled, parallel-twin engine is known for longevity when properly maintained. Many examples still run strong after decades, especially if they were well cared for. The simplicity of the design (no complex electronics, minimal sensors) means fewer points of failure.

2. **Off-Road Capability**

The TT600N was built for trail riding, with a long-travel suspension setup (front and rear) that absorbs rough terrain better than most street bikes of its era. The low seat height (27.2 inches) and lightweight frame make it highly maneuverable on technical trails. It lacks modern suspension tech, but its old-school compliance is still effective for casual off-roading.

3. **Low Maintenance Requirements**

Compared to modern bikes, the TT600N has fewer electronic components, no ABS, and a straightforward fuel injection system (or carburetors in earlier models). This means easier diagnostics and repairs, especially for those comfortable with basic mechanical work. Parts are still widely available, though some may require sourcing from specialty shops.

4. **Classic Aesthetic and Vintage Appeal**

The TT600N has a timeless, utilitarian design that appeals to riders who enjoy the look and feel of older adventure bikes. Its simple, no-frills styling is reminiscent of the golden age of trail bikes, making it a favorite among vintage enthusiasts.

5. **Fuel Efficiency**

The air-cooled, 600cc parallel-twin engine is thirsty by modern standards but far more efficient than larger displacement bikes from the same era. It typically averages **40 50 mpg** on trails, making it practical for weekend adventures without requiring frequent fuel stops.

6. **Affordability**

Prices for a well-maintained 1985 TT600N Bolt are generally reasonable, especially compared to modern adventure bikes. A solid example can often be found for **$3,000 $6,000**, depending on condition, mileage, and location. Restoration costs are also lower than those for more complex modern bikes.

7. **Easy to Modify and Customize**

The bike s simplicity allows for easy modifications, such as upgrading the suspension, exhaust, or adding aftermarket parts like a modern seat or handlebars. Many riders enjoy restoring or tuning the engine for better performance without excessive complexity.

8. **Strong Community and Support**

There is a dedicated community of TT600N owners and enthusiasts who share knowledge, parts, and restoration tips. Forums, clubs, and social media groups (e.g., Yamaha TT600 forums) provide resources for troubleshooting and finding rare parts.

9. **No Electronic Gremlins**

Unlike modern bikes with complex ECUs, traction control, or other electronics, the TT600N s mechanical nature means fewer issues arising from software or sensor failures. This makes it more predictable and easier to ride in remote areas where diagnostics tools aren t available.

10. **Great for Learning**

The bike s weight (around **350 380 lbs**) and simple controls make it an excellent choice for riders looking to improve their off-road skills without the intimidation of a heavier or more complex machine.

---

### **Cons of the Yamaha TT600N Bolt (1985 Model)**

1. **Outdated Technology**

The bike lacks modern safety features such as **ABS, traction control, or electronic suspension adjustment**. While this isn t a dealbreaker for experienced riders, it can be a concern for those prioritizing modern safety tech. The fuel injection system (if equipped) is basic by today s standards and may require occasional tuning.

2. **Poor Fuel Economy on the Street**

While the TT600N is efficient on trails, it struggles with highway riding. The engine is not optimized for high-speed cruising, and fuel economy drops significantly on paved roads, often averaging **25 35 mpg**. This makes it less practical for long-distance commuting or highway touring.

3. **Comfort Limitations**

The suspension is designed for off-road use, which means it can feel harsh on rough pavement or during long rides. The seat is firm and not ergonomic for extended periods, and the lack of wind protection makes it uncomfortable in high-speed conditions. Modern adventure bikes offer far superior comfort for mixed riding.

4. **Rust and Wear Issues**

Many 1980s Yamaha bikes suffer from rust, especially in the swingarm, frame, and suspension components. A thorough inspection is critical to ensure the bike hasn t been neglected. Salt corrosion is a common issue in regions with winter road treatments.

5. **Limited Power and Performance**

The 600cc parallel-twin produces around **45 50 hp**, which is adequate for trail riding but underwhelming compared to modern adventure bikes (e.g., 1,000cc engines). The bike lacks the torque and power needed for aggressive off-roading or fast on-road riding. Upgrading the engine or exhaust can improve performance, but it requires mechanical skill.

6. **Poor Visibility and Ergonomics**

The bike s compact size and lack of fairings mean poor wind protection and limited visibility. The handlebars are narrow and not adjustable, which may not suit riders with different body types. The footpegs are also small and can be uncomfortable for taller riders.

7. **Parts Availability and Costs**

While parts are generally available, some components (e.g., suspension seals, O-rings, or rare electrical parts) can be expensive or difficult to source. Restoring the bike may require patience and a willingness to hunt for parts. Newer models or aftermarket replacements may not fit perfectly.

8. **No Modern Conveniences**

The TT600N lacks features like **digital dashboards, Bluetooth connectivity, or even a reliable speedometer**. The analog gauges are functional but not as informative as modern displays. Storage options are minimal, with only a small top box or saddlebags.

9. **Maintenance Can Be Labor-Intensive**

While the bike is simple, some maintenance tasks (e.g., valve adjustments, carburetor tuning, or suspension overhauls) require mechanical expertise. Riders who aren t comfortable with basic engine work may find maintenance more challenging than on modern bikes.

10. **Resale Value**

The TT600N is not a high-value investment. Unlike some classic bikes, it doesn t hold its value well, and resale prices can drop significantly after purchase. It s best suited as a project bike or a fun, low-cost adventure machine rather than a long-term investment.

---

### **Conclusion**

The **Yamaha TT600N Bolt (1985 model)** is a fantastic choice for riders who prioritize **simplicity, off-road capability, and vintage charm** over modern conveniences. It excels as a **weekend trail bike, a project for restoration, or a tool for learning off-road skills**. Its low cost, reliability, and ease of maintenance make it an attractive option for those who enjoy mechanical bikes and don t require the latest technology.

However, it is **not ideal** for riders who want **highway comfort, modern safety features, or long-distance touring**. The bike s limitations in power, ergonomics, and fuel efficiency on pavement mean it s best suited for **casual off-roading, commuting on light trails, or as a fun, no-nonsense adventure machine**.

---

### **Recommendation**

- You are an **experienced rider** comfortable with basic mechanical work and maintenance.

- You **prioritize off-road use** and don t mind a firm ride on pavement.

- You enjoy **vintage bikes** and appreciate the simplicity and durability of older designs.

- You are on a **budget** and want a reliable, low-cost adventure bike.

- You plan to **restore or modify** the bike as a long-term project.

- You need **modern safety features** (ABS, traction control, etc.).

- You frequently ride **on highways or long distances** due to poor fuel economy and comfort.

- You want a **high-performance or high-torque** adventure bike.

- You are not willing to **inspect thoroughly for rust, wear, or mechanical issues** before purchasing.

- You prefer **modern ergonomics, wind protection, and digital aids**.

The **1985 Yamaha TT600N Bolt is a fantastic choice for the right rider** one who values **simplicity, trail capability, and the joy of riding a classic bike**. It s not a "modern" adventure bike, but for those who appreciate its strengths, it remains one of the most rewarding and practical trail bikes of its era. Always **inspect the bike thoroughly, check service records, and be prepared for maintenance** before buying.

Details:

All parts are sold as-is. What you see is exactly what you'll receive. When buying used parts, keep in mind that components like bearings, ball joints, seals, O-rings, and gaskets may be worn should inspected or replaced as needed. You can call or me at and I ll be happy to help.

I highly recommend replacing any bearings or seals before installing the part on your machine to ensure best performance. Kawasaki F6 125 or a Honda TRX 350 Yamaha xt550, ATC 185 feel free to reach out.

part #: 90109081g200 prices

• $7.90-$10.18

specifications cyclevintagee:

• for models: Tt600n
• for makes: Yamaha
• for years: 1985
• mpn: 90109-081g2-00
• part type: Bolt
• universal fitment: No
• vintage part: Yes
• country of origin: Japan

seller cyclevintagee:

• rating: 99.6%
• # reviews: 271
• city: Salina, Kansas

payments cyclevintagee:

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

offer cyclevintagee:

• sold: 0
• quantity: 1
• availability: In Stock
• started: May 15, 2026
• options: Ship-to-home
• best offers: True

returns cyclevintagee:

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

shipping cyclevintagee:

• class: Standard
• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage
• cost: $0.00
• transit: 5-12 Days

general cyclevintagee:

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

Yamaha 90109-081G2-00 Is Similar To:

• 0000 Yamaha Yg1 Yf1 Yj1 Yj2 Nos Oem Turn Signal Lens White X 2 (32.1% similar) Brand new old stock turn signal lenses white set of 2 bx TT12...(May 23rd, 2016)
• 040-5498 Stanley Vintage Yamaha Xs (45.2% similar) I recently bought this and many other parts that had been stored in a barn for years. Shipping cost shown is only an estimate and not accurate. What you see in the photos is get and this part being sold as. Vintage yamaha XS 850, 750 motorcycle taillight assembly, Stanley for sale is a assembly...(April 12th, 2017)
• 102-18125-00 Vintage Yamaha 1962 Mf2 (46.5% similar) Looked this up online and from what I found, will work on the 1962 MF2 moped. The part number on this is offer for a vintage yamaha moped transmission change shaft. The shaft measures approx long and is a new, oem...(November 23rd, 2017)
• 109-14451-00 Yamaha Nos Air Filter Oem New Riverside (31.4% similar) It is in excellent new condition. Here is a nos air filter for your yamaha YJ2...(May 27th, 2018)
• 109-25437-10-00 Yamaha Nos Genuine Rear Sprocket Tooth Oem (29.6% similar) The actual item is shown. Oem part number. This is in nos unused condition. This may or not come in the original packaging. The majority of items we sale are shipped through USA postal service USPS and or FedEx with delivery confirmation. Up for sale is this genuine yamaha 37T rear sprocket part as ...(January 7th, 2019)
• 11613-67-73 Yamaha Oem Gt1-gtmx 1973-74 (27% similar) Hard to find item. Outer cover is very lightly soiled as shown in picture...(August 15th, 2017)
• 122-11601-21 Yamaha Vintage Motorcycle Dirt Bike Over Piston Ring Set (31.9% similar) This listing is for an oem yamaha piston ring set. 50MM or 2ND over piston ring set...(December 26th, 2018)
• 122-11610-11 Yamaha Vintage Motorcycle Dirt Bike Over Piston Ring Set (31.9% similar) These are nos parts, the part number for this piston ring set is. This listing is for an oem yamaha piston ring set. 25MM or 1ST over piston ring set...(December 26th, 2018)
• 122-21510-00-00 Superior New Top Yamaha Front Fender Nos Vintage Made In (31.1% similar) USA buyer pays new old stock 1960 'S-70S vintage after market chrome front fender, made in japan. Shipping cost...(November 12th, 2018)
• 122-25437-10-33 122-25437-11-33 Yamaha Rear Sprocket Oem (22.2% similar) They cannot be combined after have been paid for. It cannot be tracked outside of the states and insured. Parts come in every day. The shipping price is based on weight and measurements of box. New old stock oem part. If your application is not listed as fitting, do purchase it. Do your homework and...(August 12th, 2018)
• 124-26335-10-00 Yamaha Clutch Cable New Oem 766856459729 (30.2% similar) New oem yamaha cable clutch oem part number: qty 1 previous: 00ITEM only fits specific model's listed. The picture could be generic. New oem yamaha cable clutch oem part number: qty 1 previous: 00ITEM only fits specific model's listed...(October 1st, 2018)