The 1985 Yamaha Vmax burst onto the scene, a groundbreaking motorcycle that redefined power and style. This wasn’t just a bike; it was a statement, a raw expression of muscle and performance that left competitors in its dust. This article delves into the legendary 85 Yamaha VMAX, exploring its innovative design, groundbreaking performance, and enduring legacy.
The Birth of a Legend: Design and Engineering of the 85 VMAX
Yamaha envisioned a “muscle bike,” but the VMAX transcended the term. It was a force of nature, built to dominate. The heart of the beast was a liquid-cooled 1,198cc V4 engine derived from the Yamaha Venture touring bike. However, engineers didn’t just transplant the engine; they transformed it.
Cams were reground for low-end torque, while larger valves and 35mm Mikuni carburetors maximized airflow. The true genius lay in the revolutionary V-Boost system. At 6,000 RPM, a servo-motor activated butterfly valves in the intake manifold, effectively connecting two carburetors per cylinder bank. This ingenious solution provided a surge of power at higher RPMs, propelling the VMAX to a claimed 145 horsepower.
This power came at a price: a small, four-gallon fuel tank located under the seat, limiting range to roughly 100 miles. Comfort wasn’t a priority; the VMAX was about exhilarating performance, not long-distance cruising. A five-speed gearbox, reinforced to handle the immense power, and a shaft final drive transferred power to the rear wheel.
Performance and Handling: Taming the Beast
The 85 Yamaha VMAX was a straight-line missile, boasting a sub-10-second quarter-mile time. Its acceleration dwarfed competitors like the Honda Magna 1100 and Suzuki Madura 1200.
The chassis, a tubular steel cradle, provided a stable platform. A 40mm Kayaba air-adjustable fork and twin Kayaba rear shocks with adjustable preload and rebound damping offered decent handling. However, the VMAX’s weight, nearly 620 pounds, and a long wheelbase contributed to its tendency to stand up in corners. An 18-inch front wheel with dual 282mm discs and a massive 15-inch rear wheel with a 150/90 tire provided stopping power.
Styling: A Visual Masterpiece
The VMAX’s styling was as radical as its performance. Sharp angles and a distinctive silhouette set it apart from other cruisers. Fake air scoops, a large speedometer mounted above the headlight, and an optional dealer-installed pinstripe kit enhanced its visual appeal.
The Legacy of the 85 Yamaha VMAX
The VMAX’s dominance was immediate. Competitors struggled to keep pace, and economic downturns led to a brief hiatus in production for the 1987 model year. However, the VMAX returned in 1988 and continued its reign with minor updates over the next two decades. The 1985 Yamaha VMAX remains a landmark achievement in motorcycle history. Its innovative engineering, unmatched performance, and striking design cemented its status as an icon.
