| MODEL | HONDA XL 400R 1982 |
| Year | 1982 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valve |
| Displacement / Capacity | 398 cc / 24.3 cu in |
| Bore X Stroke | 89 x 64 mm |
| Compression Ratio | 8.6:1 |
| Cooling System | Air cooled |
| Max Power | 24.3 kW / 33 hp @ 6500 rpm |
| Max Torque | 39 Nm / 28.8 lb-ft @ 5000 rpm |
| Ignition | CDI |
| Induction | 2 x 26 mm Keihin carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 41 mm air-adjustable forks |
| Rear Suspension | Single gas shock, fully adjustable |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 895 mm / 35.2 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 139 kg / 306 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 4.60-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The XL400R was a short-stroke 398 cc version of the XL500R, built for markets such as Japan and Europe and never sold in the United States. It shared the bigger bike's chassis and four-valve single-cylinder layout, with drum brakes at both ends, air-assisted forks and a small 10-litre tank. Honda covered it in the same service manual as the XL500R.
