| MODEL | MOTO MORINI 3½ SPORT 1978 - 1979 |
| Year | 1978 - 1979 |
| Engine Type | Four stroke, 72° V-twin, OHV, 2 valves per cylinder |
| Displacement / Capacity | 344 cc / 20.9 cu in |
| Bore X Stroke | 62 x 57 mm |
| Compression Ratio | 11.0:1 |
| Cooling System | Air cooled |
| Max Power | 28.5 kW / 39 hp @ 8500 rpm |
| Max Torque | 33.6 Nm / 24.8 lb-ft @ 6300 rpm |
| Ignition | Electronic CDI |
| Induction | 2x 25 mm Dell'Orto carburetors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Six-plate dry |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Steel twin loop |
| Front Suspension | 32 mm telehydraulic forks |
| Rear Suspension | Swinging arm, dual adjustable shocks |
| Front Brakes | 2x 254 mm discs |
| Rear Brakes | 180 mm drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 160 kg / 352.7 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.25-18 |
| Rear Tyre | 4.10-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 14 Litres / 3.7 US gal |
| Fuel Consumption | — |
| Top Speed | 97 mph |
The late-1970s 3½ Sport moved to twin front discs, giving the small V-twin stronger braking to match its roughly 39 hp output. Mechanically it carried on with the proven air-cooled 344 cc engine, and styling saw minor updates around 1979.
