Categories: Ducati

Ducati 350 Mark 3D (1971-75)

The Ducati 350 Mark 3D motorcycle was produced from 1971 to 1975 and had a four-stroke, single-cylinder engine with a capacity of 340.2cc. The compression ratio was 10.0:1 and it had a Dell’Orto SS129D induction system, points ignition, and a 6V30W generator. The kick-started bike had a maximum power output of 24.8 kW at 8500 rpm and was equipped with a wet multiplate clutch, a 5-speed transmission, and a chain final drive with a ratio of 3.214:1. It had a front suspension system made up of a 35 mm Marzocchi telescopic hydraulic fork, while the rear suspension consisted of a swingarm and twin Marzocchi shocks that were 3-way adjustable. Braking was provided by 180 mm and 160 mm drums at the front and rear respectively, while the tyres were 2.75-18 at the front and 3.00-18 at the rear. The motorcycle had a length of 2000 mm, a width of 600 mm, and a height of 940 mm, with a dry weight of 128 kg. The fuel capacity was 15 litres and the bike had a top speed of 170 km/h.


Technical specifications:

Make Model: Ducati 350 Mark 3

Year: 1971 – 75

Engine: Four stroke, single cylinder, SOHC, bevel gear driven

Capacity: 340.2cc / 20.8 cu in



Bore x Stroke: 76 x 75 mm

Compression Ratio: 10.0:1

Induction: Dell’Orto SS129D

Ignition: Points, coil, 6V30W generator

Battery: Yuasa B38 12Ah

Spark Plug: Marelli CW260N / Lodge 2HN

Starting: Kick

Max Power: 24.8 kW / 34 hp @ 8500 rpm

Clutch: Wet, multiplate

Primary Drive Ratio: 2.111:1

Transmission: 5 Speed

Gear Ratios: 1st 2.46 / 2nd 1.73 / 3rd 1.35 / 4th 1.10 / 5th 0.97:1

Final Drive: Chain


Final Drive ratio: 3.214:1

Front Suspension: 35 mm Marzocchi telescopic hydraulic fork

Rear Suspension: Swingarm, Twin Marzocchi shocks, 3-way adjustable

Front Brakes: 180 mm Drum

Rear Brakes: 160 mm Drum

Front Tyre: 2.75-18

Rear Tyre: 3.00-18

Dimensions: Length: 2000 mm / 78.7 in Width: 600 mm / 23.6 in Height: 940 mm / 37.0 in

Seat Height: 735 mm / 28.9 in

Dry Weight: 128 kg / 282 lbs


Fuel Capacity: 15 Litres / 4.0 US gal / 3.3 Imp gal

Top Speed: 170 km/h / 106 mph
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