1. Antique, Vintage, Historic Motorcycle Parts For Sale
  2. sku: 21738608267022892
  3. YAMAHA 34K-21621-01-00

YAMAHA 34K-21621-01-00 Flap

fits model: Tt600k. make: Yamaha. year: 1983.

34k-21621-01-00 Yamaha 1983 Tt600k Vintage Oem Flap

( Manufacturer Part Number: 34K-21621-01-00 ), ( Part Type: Flap ), ( Machine Type: Dual Sport Motorcycle ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Country Of Origin: Japan )

Review YAMAHA Vintage Oem Flap fits TT600K 1983

The **Yamaha TT600K Flap (model 34K-21621-01-00, circa 1983)** is a legendary example of Yamaha s pioneering spirit in the world of adventure and dual-sport motorcycles, embodying the bold, no-nonsense ethos of the early 1980s. This machine represents a rare and highly sought-after piece of motorcycle history, designed as a versatile off-road and on-road machine that bridged the gap between sporty trail bikes and full-fledged enduro rigs. Built around Yamaha s proven 599cc parallel-twin engine derived from the iconic TT600 this model features a compact, lightweight frame that prioritizes agility and maneuverability, making it equally at home on rough forest trails or winding country roads. The engine itself is a refined yet robust unit, producing a smooth yet spirited 48 horsepower, paired with a five-speed transmission that delivers crisp, responsive shifts. Its air-cooled design ensures reliability in demanding conditions, while the wet-sump lubrication system minimizes maintenance hassles, a hallmark of Yamaha s engineering at the time.

The TT600K Flap stands out with its distinctive "flap" fairing a minimalist, functional windscreen that offers basic protection without the bulk of full fairings, striking a balance between aerodynamics and off-road practicality. The frame is a steel double-cradle design, sturdy yet nimble, with a telescopic front fork and a rear swingarm that accommodates a single shock for a simple yet effective suspension setup. The brakes are a pair of drum brakes up front, a common feature of the era that, while not as modern as today s discs, were more than adequate for their time and contributed to the bike s lightweight feel. The ergonomics are tailored for comfort and control, with a low seat height and a relaxed riding position that allows for extended off-road excursions without fatigue.

Visually, the TT600K Flap exudes a rugged, utilitarian charm with its matte black paint, chrome accents, and a minimalist aesthetic that avoids unnecessary ornamentation. The fuel tank is a simple, functional design, and the handlebars are slightly swept-back for better off-road handling. This bike was not just a machine for show but a true workhorse, designed for adventurers who demanded performance, durability, and simplicity. Today, the TT600K Flap is a prized collector s item, cherished by enthusiasts for its historical significance, timeless design, and the sense of freedom it embodies. Whether restored to pristine condition or left with a weathered, lived-in patina, it remains a testament to Yamaha s innovation and the golden age of dual-sport motorcycles.

### Yamaha TT600K Flap (Model: 34K-21621-01-00, 1983) Pros and Cons

#### **Pros**

1. **Classic Design and Aesthetics**

The TT600K is a timeless motorcycle, known for its elegant, retro styling that appeals to enthusiasts who appreciate vintage aesthetics. Its clean lines, chrome accents, and minimalist design make it stand out on the road.

2. **Reliability and Durability**

Yamaha built the TT600K to last, and many examples from the early 1980s remain in excellent condition with proper maintenance. The engine and chassis are robust, and with regular upkeep, it can provide decades of trouble-free riding.

3. **Lightweight and Agile**

At around **200 kg (440 lbs) wet**, the TT600K is relatively light for its class, making it nimble and easy to handle. This weight distribution contributes to its sporty, responsive nature, especially on twisty roads.

4. **Strong Engine Performance**

The **599cc parallel-twin engine** produces around **50-55 hp** and **4.8 kg-m (35 lb-ft) of torque**, which is sufficient for cruising and spirited riding. The engine is smooth, reliable, and known for its longevity if maintained properly.

5. **Ease of Maintenance**

The TT600K is relatively straightforward to work on, with accessible components and a reputation for being less complex than some of its contemporaries (e.g., early CB750s or GS1100s). Many mechanics and DIY riders find it manageable.

6. **Resale Value and Collectibility**

As a classic Yamaha, the TT600K holds its value well, especially in good condition. Well-preserved examples can appreciate over time, making it a sound investment for collectors.

7. **Comfortable Riding Position**

The upright seating position and ergonomics make it comfortable for long rides, though it is not as aggressive as modern sportbikes. It suits a relaxed, touring-oriented riding style.

8. **Minimalist Features**

The bike s simplicity no unnecessary electronics, basic instrumentation appeals to purists who prefer a no-frills riding experience.

---

#### **Cons**

1. **Outdated Technology**

The TT600K lacks modern conveniences such as ABS, traction control, or advanced fuel injection. It relies on a **carbureted engine**, which requires more attention to tuning and maintenance than modern fuel-injected bikes.

2. **Poor Fuel Efficiency**

With a **19-liter fuel tank** and a thirsty engine, the TT600K gets around **10-12 km/l (25-30 mpg)**, making it inefficient compared to modern bikes. Long trips require frequent stops.

3. **Limited Power for Modern Standards**

While the engine is adequate for its time, it feels underpowered by today s standards, especially when compared to modern naked bikes or sport-tourers. Acceleration and top-speed performance are modest.

4. **Rust and Corrosion Risks**

Being an older bike, the TT600K may suffer from **rust in the frame, suspension, or exhaust**. A thorough inspection is crucial to avoid hidden structural issues.

5. **Suspension and Braking Limitations**

The **conventional telescopic forks and rear swingarm suspension** are not as refined as modern systems. Braking performance is adequate but not comparable to modern disc brake setups.

6. **High Maintenance Costs**

While the bike is simple, **carburetors, points ignition, and older components** require specialized knowledge or parts. Over time, replacement parts (e.g., seals, bearings, cables) can add up in cost.

7. **Legal and Insurance Challenges**

Some regions have **restrictions on classic bikes**, such as mandatory helmets, insurance premiums, or emissions compliance. Insurance for older bikes can also be more expensive due to perceived risks.

8. **Limited Aftermarket Support**

While parts are available, they may not be as readily accessible as for newer models. Customization options are limited compared to modern bikes.

9. **Weight Distribution and Stability**

The TT600K s **lightweight** can be an advantage, but it also means the bike can feel **less stable at high speeds** compared to heavier, more modern bikes.

10. **Potential for Hidden Mechanical Issues**

Like any vintage bike, the TT600K may have **wear-and-tear problems** (e.g., worn bearings, leaking seals, or clutch issues) that require significant investment to fix.

---

### **Conclusion**

The **1983 Yamaha TT600K Flap** is a **fantastic choice for enthusiasts who appreciate classic design, reliability, and a no-frills riding experience**. It excels in **aesthetics, handling, and long-term durability**, making it ideal for collectors, riders who enjoy a slower pace, or those who prioritize mechanical simplicity.

However, it is **not suited for riders seeking modern performance, fuel efficiency, or advanced safety features**. The **maintenance demands, lack of power, and potential rust issues** mean it requires **more attention than a new bike** but offers **timeless charm and character**.

### **Recommendation**

- **Buy if:**

- You love vintage motorcycles and want a **well-built, reliable classic** for daily riding or weekend cruising.

- You are prepared for **regular maintenance** (carb tuning, ignition checks, rust prevention).

- You value **aesthetics and driving experience** over raw power.

- You plan to **restore or preserve** the bike as a collector s item.

- **Avoid if:**

- You need **modern features** (ABS, fuel injection, electronics).

- You frequently ride **long distances** due to poor fuel efficiency.

- You are not comfortable with **older mechanical systems** (points ignition, carburetors).

- You want a **high-performance or sporty** riding experience.

**Final Verdict:** The TT600K is a **great investment for the right rider** one who appreciates craftsmanship, history, and a bike that feels like a piece of automotive art. Just ensure it is **thoroughly inspected** before purchase and budget for maintenance. For modern practicality, consider a **restomod or a newer classic** (e.g., a Yamaha XS650 or a CB600), but if you want **pure vintage charm**, the TT600K is a fantastic choice.

Details:

All parts are sold as-is. I highly recommend replacing any bearings or seals before installing the part on your machine to ensure best performance. What you see is exactly what you'll receive. You can call or me at and I ll be happy to help.

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. Kawasaki F6 125 or a Honda TRX 350 Yamaha xt550, ATC 185 feel free to reach out.

part #: 34k216210100 price

  • $16.00

specifications cyclevintagee:

  • for models: Tt600k
  • for makes: Yamaha
  • for years: 1983
  • mpn: 34k-21621-01-00
  • part type: Flap
  • machine type: Dual Sport Motorcycle
  • universal fitment: No
  • vintage part: Yes
  • country of origin: Japan

payments cyclevintagee:

  • other
  • wallet: Paypal
  • credit card: Discover

offer cyclevintagee:

  • quantity: 1
  • best offers: True
  • sold: 0
  • options: Ship-to-home
  • started: April 13, 2026
  • availability: In Stock

returns cyclevintagee:

  • policy: No Returns

general cyclevintagee:

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

seller cyclevintagee:

  • rating: 99.5%
  • city: Salina, Kansas
  • # reviews: 232

shipping cyclevintagee:

  • transit: 4-10 Days
  • carrier: USPS
  • type: Calculated
  • class: Standard
  • service: USPS Ground Advantage
  • cost: $0.00
for models: tt600k, for makes: yamaha, for years: 1983, part type: flap, machine type: dual sport motorcycle, universal fitment: no, vintage part: yes, country of origin: japan,
category: motorcycle parts > motorcycle scooter parts accessories, sku: 21738608267022892,
Yamaha 34K-21621-01-00 Is Similar To:
cyclevintagee logo
1 offer $16.00 USD
  • Used. Offer #1 priced at $16.00 + $0.00 shipping estimate = $16.00* total. What you see is exactly what you ll Kawasaki F6 125 or a Honda TRX 350 or a Yamaha xt550, Honda ATC 185 feel free to reach out! seals before installing the part on your.FREE SHIPPING

Copyright © cyclevintagee.com