Yamaha AS 3 1971 - Specifications & Review

Introducing the 1971 Yamaha AS 3, a classic naked bike that perfectly encapsulates the spirit of early '70s motorcycling. This charming machine stands out in Yamaha’s lineup as a nimble and lightweight option for both new riders and seasoned enthusiasts looking for a nostalgic ride. With its minimalist design and robust performance, the AS 3 was designed for urban commuting and spirited joyrides alike, making it an appealing choice in the competitive market of small-displacement motorcycles during that era.

At the heart of the Yamaha AS 3 lies a spirited 125cc twin-cylinder, two-stroke engine that delivers a delightful 16 horsepower at a high-revving 9,800 RPM. This power translates into a thrilling top speed of 127 km/h (78.9 mph), allowing riders to experience the rush of the open road. The 5-speed gearbox ensures smooth gear transitions, providing a responsive and engaging ride, while the air-cooled engine maintains simplicity and reliability. The AS 3’s lightweight frame, weighing in at just 105 kg (231.5 pounds) with fluids, enhances its agility, making it a joy to maneuver through tight corners and bustling city streets.

The Yamaha AS 3 is equipped with practical features that reflect its era while showcasing Yamaha’s commitment to engineering excellence. The bike boasts a fuel capacity of 9 liters (2.38 gallons), allowing for extended rides without frequent stops at the pump. The expanding brake system—present in both the front and rear—provides reliable stopping power, ensuring that riders can confidently navigate any situation. With a compression ratio of 7.0:1, the AS 3 is designed for efficiency and performance, making it a solid choice for those who appreciate the nuances of two-stroke engines.

Pros:

1. Lightweight and Agile: Weighing just 105 kg, the AS 3 is exceptionally nimble, making it perfect for city riding and quick maneuvers.
2. Classic Two-Stroke Performance: The lively twin-cylinder engine delivers an exhilarating ride with a distinct sound and power delivery that enthusiasts adore.
3. Simplicity and Reliability: With minimal electronics and a straightforward air-cooled design, maintenance is a breeze, allowing riders to enjoy the ride without worrying about complex systems.

Cons:

1. Limited Power for Long-Distance Riding: With only 16 HP, the AS 3 may struggle to keep up with faster highway traffic, making it more suited for urban environments.
2. Basic Suspension and Braking: While effective for its time, the expanding brakes and basic suspension may not meet the expectations of modern riders looking for advanced performance.
3. Two-Stroke Maintenance: The two-stroke engine requires regular oil mixing and can be less forgiving when it comes to maintenance compared to four-stroke counterparts.

The 1971 Yamaha AS 3 is more than just a motorcycle; it’s a piece of history that invites riders to relish the simplicity and excitement of two-stroke performance. Whether you’re a collector, a beginner, or someone seeking a taste of the past, the AS 3 promises a ride that is both engaging and memorable.