| MODEL | HUSQVARNA 420 AUTOMATIC 1981 |
| Year | 1981 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 430 cc |
| Bore X Stroke | 86 x 74 mm |
| Compression Ratio | 11.5:1 |
| Cooling System | Air cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | CDI |
| Induction | 38 mm Mikuni carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | Automatic |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork |
| Rear Suspension | Swinging arm |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 109 kg / 240 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 140/90-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 11 Litres / 2.9 US gal |
| Fuel Consumption | — |
| Top Speed | — |
An air-cooled two-stroke Husqvarna with an automatic transmission in place of a manual gearbox and clutch lever, aimed at making off-road riding easier. It was an unusual experiment in a sport dominated by manual gearboxes.
