Husqvarna WR400: history, specs, pictures

The Husqvarna WR400 is a 400cc single cylinder, motocross motorcycle manufactured by Husqvarna in Husqvarna, Sweden.

1973

List of Husqvarna motorcycles

Husqvarna WR400
Manufacturer	Husqvarna
Also called	400 WR
Production	1985 - 1990
Engine	single cylinder, two-stroke
Bore / Stroke	82.5mm x 74.0mm
Top Speed	68 mph (110 km/h)
Horsepower	16.63 HP (12.4 KW) @ 5500RPM
Spark Plug	NGK ‘74-75
Transmission	Gear box: 6-speed Final Drive: chain
Final Drive	Chain: 520x120 ‘84, ‘86
Front Sprocket	14T ‘84, ‘86
Rear Sprocket	53T ‘84, ‘86
Brakes	Front: single disc Rear: expanding brake
Front Tire	90/90-21
Rear Tire	140/80-18
Weight	110.0 kg (wet)
Fuel Capacity	2.77 Gallon (10.50 Liters)
Manuals	Service Manual

The Husqvarna 400 WR was a single cylinder, two-stroke standard produced by Husqvarna between 1985 and 1990. It could reach a top speed of 68 mph (110 km/h). Claimed horsepower was 16.63 HP (12.4 KW) @ 5500 RPM.

Engine

The engine was a liquid cooled single cylinder, two-stroke. A 82.5mm bore x 74.0mm stroke result in a displacement of just 395.0 cubic centimeters. Fuel was supplied via a membrane.

Drive

The bike has a 6-speed transmission.

Chassis

It came with a 90/90-21 front tire and a 140/80-18 rear tire. Stopping was achieved via single disc in the front and a expanding brake in the rear. The 400 WR was fitted with a 2.77 Gallon (10.50 Liters) fuel tank.