KAWASAKI 13239-1119 Gear Drum

( Manufacturer Part Number: 13239-1119 ), ( Part Type: Gear )

Review KAWASAKI Gear Shift Drum fits KZ550 A3 KZ 550 1982

The **Kawasaki KZ550 A3 (1982 model, part number 13239-1119)** is a legendary example of Japanese motorcycle engineering from the golden era of the 1970s and early 1980s, embodying the perfect blend of raw performance, timeless design, and mechanical sophistication. This mid-sized sport-touring bike was part of Kawasaki s highly acclaimed *KZ* series, which revolutionized the motorcycle world with its air-cooled, four-stroke, 550cc inline-four engine a powerplant that delivered an exhilarating balance of torque and high-revving enthusiasm. The 1982 KZ550 A3, in particular, represents a refined iteration of the original 1978 model, featuring subtle yet meaningful upgrades that enhance both ride quality and handling. The engine, a masterpiece of precision casting and metallurgy, boasts a compact yet robust design with a single overhead camshaft per cylinder, driven by a chain, and four valves per cylinder for optimal airflow. This setup produces a smooth yet spirited power delivery, with a peak output of around 50 horsepower and a torque curve that makes the KZ550 feel both nimble and capable on both city streets and open highways. The A3 variant introduces a few key refinements, including a slightly revised carburetion setup (often featuring Mikuni BS28 or BS30 carburetors) and improved suspension geometry, which contributes to a more stable and predictable ride compared to earlier models.

Mechanically, the KZ550 A3 is a marvel of its time, featuring a five-speed transmission with a close-ratio gearbox that allows for effortless shifting and a wide range of speeds. The drivetrain is completed by a chain final drive, which, while less efficient than a shaft drive, adds to the bike s classic character and is easily maintained with proper upkeep. The frame is a double-cradle design constructed from high-tensile steel, providing a sturdy yet lightweight foundation that balances agility with durability. The suspension is a classic setup for its era, with a telescopic front fork and a dual-shock rear suspension, offering a comfortable yet responsive ride over varied terrain. The braking system, though modest by modern standards, is effective for its time, featuring a single front disc brake (later models may include a dual-disc option) and a drum brake at the rear, which, while not as powerful as contemporary systems, still provides reliable stopping power when maintained properly.

The KZ550 A3 s styling is a testament to the minimalist yet aerodynamic aesthetic of the early 1980s, with clean lines, sharp angles, and a low-slung silhouette that makes it instantly recognizable. The fuel tank, painted in a classic Kawasaki blue or other period colors, features a sleek, rounded shape with subtle chrome accents that add a touch of elegance. The seat is a firm, contoured unit designed for both comfort and performance, while the footpegs and handlebars are positioned to encourage an upright riding posture, making the bike approachable for both casual riders and enthusiasts. The A3 s instrumentation is simple yet functional, with a speedometer, tachometer, fuel gauge, and oil pressure gauge mounted on a clean, black dashboard, providing all the essential information without overwhelming the rider. The bike s overall appearance is further enhanced by its chrome accents, including the exhaust headers, muffler, and various trim pieces, which contribute to its timeless appeal and make it a standout piece in any collection.

Under the hood, the KZ550 A3 s engine is a work of art, with its polished aluminum cylinder heads, precision-machined crankcase, and meticulously balanced components. The air-cooled design ensures reliable operation without the need for complex cooling systems, while the four-carburetor setup (often featuring Mikuni or Keihin units) delivers a rich, throaty exhaust note that is both satisfying and iconic. The gear drum, part number **13239-1119**, is a critical component of the transmission system, housing the internal gears and synchronizers that allow for smooth shifting between the five forward speeds and the reverse gear. This drum is a durable, cast-iron unit that, when properly maintained, can last the life of the bike, making it a highly sought-after part for restoration and customization projects. The KZ550 A3 s drivetrain is further complemented by a robust clutch system, featuring a multi-plate wet clutch that provides progressive engagement and smooth power delivery, even under heavy throttle.

The Kawasaki KZ550 A3 from 1982 is not just a motorcycle; it is a piece of automotive history that embodies the spirit of adventure and innovation that defined the era. Whether cruising along a scenic coastal road, navigating through city streets, or being pushed to its limits on a twisty backroad, this bike offers a riding experience that is both exhilarating and deeply satisfying. Its combination of raw power, refined engineering, and classic styling makes it a favorite among collectors, restorers, and enthusiasts who appreciate the beauty of mechanical simplicity and the thrill of riding a machine that was built to perform. With proper care, the KZ550 A3 can provide decades of reliable service, offering a tangible connection to the golden age of motorcycle design and a riding experience that remains unmatched in its ability to evoke nostalgia and excitement.

### Pros and Cons of Buying a 1982 Kawasaki KZ550 (Model Number: 13239-1119, A3 Gear, Drum Brake)

1. **Classic Design and Nostalgia** The KZ550 is an iconic motorcycle from the 1970s and 1980s, appealing to enthusiasts who appreciate vintage styling and engineering. Its retro aesthetic makes it a conversation starter and a great piece for collectors.

2. **Reliable Air-Cooled Engine** The 550cc air-cooled, parallel-twin engine is known for its durability and simplicity. With proper maintenance, it can last for decades, especially if the owner has kept up with basic upkeep like oil changes and valve adjustments.

3. **Mechanical Simplicity** Compared to modern fuel-injected bikes, the KZ550 has a straightforward carbureted system, making it easier to work on for DIY mechanics. Parts are widely available, and many mechanics are familiar with its design.

4. **Affordable to Purchase and Maintain** Used prices for a well-maintained KZ550 are generally reasonable, especially compared to modern sportbikes. Parts, labor, and fuel costs are also lower than those of newer machines.

5. **Great for Cruising and Commuting** The bike s relaxed ergonomics and smooth power delivery make it comfortable for long rides. Its mid-sized displacement is suitable for highway speeds without being overwhelming.

6. **Strong Aftermarket Support** There is a dedicated community of enthusiasts who have modified and restored KZ550s. Aftermarket parts, including performance upgrades (e.g., exhausts, carburetors, and suspension components) are readily available.

7. **Potential for Restoration** If the bike is in rough shape, it can be a rewarding project. Restoring a KZ550 to its former glory is a fulfilling hobby for those who enjoy mechanical work.

8. **Lower Insurance and Registration Costs** Compared to modern sportbikes, insurance and registration fees for a vintage bike like this are typically much lower.

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1. **Outdated Safety Features** The drum brakes are less effective than modern disc brake systems, especially in wet or high-speed conditions. This can be a significant safety concern, particularly for inexperienced riders.

2. **Poor Fuel Economy** The air-cooled engine and carbureted setup are not fuel-efficient by today s standards. Expect around 40-50 mpg, which is lower than modern bikes.

3. **Weak Stopping Power** Drum brakes require more distance and effort to stop, which can be dangerous in emergency situations. Upgrading to disc brakes is often recommended for safety.

4. **Vibration and Comfort Issues** The air-cooled engine can be noisy and vibrate more than modern liquid-cooled engines. The seat and ergonomics may not be as comfortable for long rides compared to modern bikes.

5. **Limited Modern Technology** The bike lacks features like ABS, traction control, or electronic fuel injection, which are standard on modern motorcycles. This can make it less forgiving in certain riding conditions.

6. **Maintenance Requirements** While the engine is durable, it requires regular upkeep, such as valve adjustments (every 1,000 miles or so), chain maintenance, and carburetor tuning. Neglecting these can lead to poor performance or engine damage.

7. **Resale Value** Vintage motorcycles like the KZ550 do not hold their value well. If you plan to sell it later, you may not recoup much of your initial investment, especially if it s not in pristine condition.

8. **Environmental Concerns** The carbureted engine produces more emissions than modern fuel-injected bikes, which may be a consideration if you ride in areas with strict environmental regulations.

9. **Limited Availability of New Parts** While parts are still available, some components (e.g., specific carburetors, gaskets, or electrical parts) may become harder to find over time, increasing repair costs.

10. **Riding Experience Limitations** The KZ550 is not as nimble or powerful as modern sportbikes. Its weight and handling may feel sluggish compared to lighter, more agile bikes.

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The 1982 Kawasaki KZ550 is a fantastic choice if you re looking for a **fun, affordable, and mechanically rewarding** motorcycle with a classic appeal. It s ideal for riders who enjoy the nostalgia of vintage bikes, appreciate mechanical simplicity, and are willing to invest time in maintenance or restoration. The KZ550 is well-suited for cruising, commuting, or weekend rides, especially if you prioritize character over cutting-edge technology.

However, if **safety, performance, and modern convenience** are your top priorities, the KZ550 s drum brakes, weak stopping power, and outdated features may be dealbreakers. It s not a bike for aggressive riding or high-speed performance; instead, it thrives as a relaxed, characterful machine.

For **beginners**, the KZ550 can be a great learning tool due to its simplicity, but the drum brakes and lack of advanced safety features mean you ll need to be cautious and possibly upgrade the braking system. For **experienced riders** who value tradition and mechanical satisfaction, it s an excellent choice just be prepared for the trade-offs in safety and efficiency.

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- You love vintage motorcycles and want a piece of automotive history.

- You re comfortable with mechanical work and willing to maintain the bike properly.

- You prioritize fun, simplicity, and affordability over modern technology.

- You plan to ride it casually (e.g., commuting, weekend cruising) rather than aggressively.

- You re okay with upgrading the brakes (or replacing them entirely) for safety.

- You need a bike for high-speed or sporty riding.

- You want modern safety features like ABS or disc brakes.

- You re not willing to invest time in maintenance or restoration.

- You expect high resale value or plan to sell it quickly.

- You re sensitive to vibration, noise, or lack of modern comforts.

The KZ550 is a **fantastic bike for the right rider** one who appreciates its charm, durability, and the joy of riding a classic machine. With some basic upgrades (like disc brakes and a modern exhaust), it can be a safe and enjoyable ride. However, it s not a "plug-and-play" modern bike, so be prepared to put in effort to keep it running smoothly. If you re ready for that, the KZ550 is a rewarding purchase. If you want a bike that s more "hands-off" and safer, consider a modern used sport-touring bike instead.

Details:

MAY ALSO FIT: KAWASAKI 1980 KZ550 A1 GEAR CHANGE DRUM FORKS 80 81 A2. Kawasaki KZ550 a1. 1982 KAWASAKI KZ550 KZ 550 A3 GEAR SHIFT DRUM. We primarily use USPS and UPS as our shipping companies.

MOTOR#KZ550AE055651.

part #: 132391119 prices

• $12.55-$17.79

specifications transmissioncycleoi:

• for models: Kz550, A3, Kz, 550
• for makes: Kawasaki
• for years: 1982
• mpn: 13239-1119
• part type: Gear

shipping transmissioncycleoi:

• service: USPS Ground Advantage
• class: Standard
• transit: 4-7 Days
• type: Fixed
• carrier: USPS
• cost: $12.50

general transmissioncycleoi:

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

offer transmissioncycleoi:

• started: February 7, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1

payments transmissioncycleoi:

• other
• wallet: Paypal
• credit card: Diners-club

seller transmissioncycleoi:

• # reviews: 106498
• city: Spokane, Washington
• rating: 99.8%

returns transmissioncycleoi:

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

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