Yamaha XJ400D

Yamaha XJ400D
Manufacturer	Yamaha
Production	1981
Class	Standard
Engine	Four stroke, transverse four cylinder. DOHC
Compression ratio	9.7:1
Top Speed	162.5 km/h / 101 mph
Ignition	Battery powered inductive
Transmission	6 Speed
Suspension	Front: 35mm Telescopic forks Rear: Single shock, adjustable spring preload
Brakes	Front: Single disc 1 piston caliper Rear: Drum
Front Tire	3.00-19
Rear Tire	110 90-18
Weight	176 kg / 388 lbs (dry),
Recommended Oil	Yamalube 10w-40
Fuel Capacity	15 Liters / 3.9 US gal
Manuals	Service Manual

It could reach a top speed of 162.5 km/h / 101 mph.

Engine

The engine was a Air cooled cooled Four stroke, transverse four cylinder. DOHC. The engine featured a 9.7:1 compression ratio.

Chassis

It came with a 3.00-19 front tire and a 110 90-18 rear tire. Stopping was achieved via Single disc 1 piston caliper in the front and a Drum in the rear. The front suspension was a 35mm Telescopic forks while the rear was equipped with a Single shock, adjustable spring preload. The XJ400D was fitted with a 15 Liters / 3.9 US gal fuel tank. The bike weighed just 176 kg / 388 lbs.

Photos

Overview

Yamaha XJ 400D

Make Model	Yamaha XJ 400D
Year	1981
Engine Type	Four stroke, transverse four cylinder. DOHC
Displacement	398 cc / 24.2 cu-in
Bore X Stroke	51 х 48.8 mm
Cooling System	Air cooled
Compression	9.7:1
Induction	2x 34mm Mikuni carburetor
Ignition	Battery powered inductive
Starting	Electric
Max Power	45 hp / 32.8 kW @ 10000 rpm
Max Torque	3.5 kgf-m / 25 lb-ft@ 8000 rpm
Transmission	6 Speed
Final Drive	Chain
Front Suspension	35mm Telescopic forks
Front Wheel Travel	142 mm / 5.6 in
Rear Suspension	Single shock, adjustable spring preload
Rear Wheel Travel	96 mm / 3.8 in
Front Brakes	Single disc 1 piston caliper
Rear Brakes	Drum
Front Tire	3.00-19
Rear Tire	110 90-18
Dry Weight	176 kg / 388 lbs
Fuel Capacity	15 Liters / 3.9 US gal
Standing ¼ Mile	14.0 sec / 90.5 mph
Top Speed	162.5 km/h / 101 mph