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Yamaha WR400: A Precision Instrument of Off-Road Dominance

**Technical Specifications:**

* **Engine:** 398cc, liquid-cooled, single-cylinder, four-stroke
* **Power Output:** 35.2 horsepower at 6,500 rpm
* **Torque:** 29.1 lb-ft at 5,500 rpm
* **Bore x Stroke:** 87mm x 63.4mm
* **Compression Ratio:** 12.0:1
* **Fuel System:** EFI with 28mm Keihin FCR carburetor
* **Transmission:** 5-speed, wet multi-plate clutch
* **Primary Drive:** Gear
* **Final Drive:** Chain
* **Frame:** Semi-double-cradle steel frame
* **Suspension:** **Front:** 46mm inverted forks, fully adjustable, 10.6 inches of travel **Rear:** Monoshock, fully adjustable, 12.4 inches of travel
* **Brakes:** **Front:** 250mm single-disc, dual-piston caliper **Rear:** 220mm single-disc, single-piston caliper
* **Wheels:** 21-inch front, 18-inch rear
* **Tires:** 90/90-21 front, 120/90-18 rear
* **Ground Clearance:** 12.2 inches
* **Seat Height:** 37.8 inches
* **Weight:** 290 pounds

**Description:**

The Yamaha WR400 is an enduro motorcycle designed to conquer the most challenging off-road terrain with ease and precision. It combines a potent, high-revving engine with a lightweight, agile chassis, resulting in an unparalleled blend of performance, handling, and durability.

At the heart of the WR400 is its 398cc single-cylinder engine, renowned for its responsive power delivery and remarkable reliability. Electronically fuel-injected (EFI) with a Keihin FCR carburetor, the engine unleashes 35.2 horsepower at 6,500 rpm and 29.1 lb-ft of torque at 5,500 rpm. This potent power output empowers the rider with a surge of acceleration and ample passing power, even on steep inclines or in deep sand.

The WR400's semi-double-cradle steel frame provides a rigid and stable foundation for the bike, while the fully adjustable suspension allows the rider to fine-tune the handling characteristics to suit their riding style and terrain conditions. The 46mm inverted forks in the front offer 10.6 inches of travel, while the rear monoshock provides 12.4 inches of travel. This impressive suspension setup ensures exceptional bump absorption, allowing the rider to maintain control and comfort over rough terrain.

The WR400 boasts a compact and nimble chassis, with a low seat height and a narrow profile. This configuration enhances maneuverability and allows for precise cornering and obstacle avoidance. The 21-inch front wheel and 18-inch rear wheel provide a perfect balance of stability and agility, enabling the rider to navigate tight trails and open spaces with confidence.

Equipped with a 250mm single-disc front brake and a 220mm single-disc rear brake, the WR400 offers excellent stopping power and control. The dual-piston caliper in the front and single-piston caliper in the rear provide responsive and modulated braking, even in slippery or wet conditions.

The Yamaha WR400 is a masterpiece of off-road engineering, meticulously crafted to dominate the most demanding trails and adventures. Its combination of power, agility, and versatility makes it an ideal choice for experienced riders seeking an unparalleled off-road experience. Whether navigating challenging terrain, conquering obstacles, or simply exploring the wilderness, the WR400 empowers riders with the confidence and capability to push their limits and discover new horizons.
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