Moto Morini 500 Sport

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Moto Morini 500 Sport

Make Model	Moto Morini 500 Sport
Year	1984 - 86
Engine	Four stroke, 72° V Twin, belt driven single cam operating pushrod 2 valve per cylinder
Capacity	478 cc / 29.1 cu-in
Bore x Stroke	69 x 64.2 mm
Cooling System	Air cooled
Compression Ratio	11.2:1
Induction	2x 26mm Dell'Orto carburetors
Ignition	Electronic
Starting	Kick
Max Power	46 hp / 34.3 kW @ 7500 rpm
Max Torque	45 hp / 33.3 lb-ft @ 5100 rpm
Transmission	5 Speed
Final Drive	Chain
Front Suspension	35mm Marzocchi forks, 140mm wheel travel.
Rear Suspension	Marzocchi shocks, 63.5mm wheel travel
Front Brakes	2x 260mm discs
Rear Brakes	Single 260mm disc
Front Tyre	90/90-18
Rear Tyre	3.50-18
Dry Weight	167 kg / 368 lbs
Wet Weight	184 kg / 405.7 lbs
Fuel Capacity	16 Litres / 4.2 US gal
Standing ¼ Mile	15.3 sec / 83 mph

Moto Morini 500 Sport AKA Moto Morini 3 ½. Moto Morini 3 ½ was well known for it’s handling but it was low on power. Later Moto Morini released a larger version of the bike, the Moto Morini 500 Sport. This Moto Morini 500 Sport is handsome and unique, an Italian classic that is as rare as hens teeth.

Throughout history Morini engines have been known for churning out lots of torque while delivering extraordinary fuel economy. Like the 350cc engine, the Morini 500 is a 72-degree tandem v-twin. The engine featured Heron heads, which were milled flat and the combustion chamber is recessed in the piston crown, aiding combustion and returning excellent fuel economy. The engine also incorporated one-piece forged steel crankshaft, ball main bearings (first series motors), plain big end bearings (second series motors), and the conrods run on a common pin, desaxe, and offsetting the rear cylinder to the front by 50 mm (2.0 in). Front and rear barrels and heads are interchangeable.

The 72 degree v-twin was connected to the six speed transmission with a six-plate dry clutch, making a characteristic rattle similar to Ducatis when disengaged. Secondary drive was by a 5/8 x 3/8-inch chain to a rear sprocket with cush drive. Gear change is by the right foot and the rear brake is operated by the left foot.

The frame is a full steel duplex swingarm design, with Ceriani rear suspension, and Marzocchi front forks. Morini 500 also featured Grimeca disc brakes.