MV Agusta 750 Sport America
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The MV Agusta 750 Sport America (also called ''MV Agusta 750 S America'' in
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
, and ''MV Agusta 800 S America'') was a motorcycle manufactured by the
MV Agusta MV Agusta (, full name: MV AGUSTA Motor S.p.A., original name: Meccanica Verghera Agusta or MV) is a motorcycle manufacturer founded by Count Domenico Agusta on 19 January 1945 as one of the branches of the Agusta aircraft company near Milan in ...
company from 1975 to 1977. Derivative models were produced in limited numbers until 1982, and the Magni models are still available to special order.


Development

In 1974 MV Agusta suffered financial difficulties and came under state administration. In 1975, Chris Garville and Jim Cotherman of Commerce Overseas Corporation, the US MV importers, initiated the new edition of the
MV Agusta 750 S The MV Agusta 750 S also known as the ''MV Agusta 750 Sport'', was a motorcycle manufactured by the MV Agusta company from 1970 to 1975. Production total of this model series was 583 machines. Development The previous model, the MV Agusta 600, wa ...
. The appearance should be more closely based on MV's racing machines, with the aim of increasing sales in the US. Within 50 days, the designs of the two entrepreneurs were implemented at the
Gallarate Gallarate (; Lombard: ''Galaraa'') is a city and ''comune'' of Alto Milanese of Lombardy and of Milan metropolitan area, northern Italy, in the Province of Varese. It has a population of some 54,000 people. It is the junction of railways to Va ...
plant.


Technical data

The core of the engine was formed by the crankcase rack. In the rack was mounted the nine-piece
crankshaft A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting ...
, assembled in six bearing blocks using
roller bearing In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two concentric, grooved rings called races. The relative m ...
s, as well as the spur gears in the control tower for driving the two
camshaft A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems ...
s. After loosening twelve nuts, the units mounted on the rack could be lifted out. Bore was increased by 2 mm over the 750 S models to increase capacity to 789cc. Individual light alloy cylinders (a block was used on the 1100 Grand Prix model) with cast liners were used with Borgo pistons. The two valves of each cylinder were actuated by bucket tappets from two overhead gear-driven camshafts. Particularly striking was the fine ribbing of the cooling fins on the sump as well as the oversized cylinder head acting by the double camshaft drive. The
gearbox Propulsion transmission is the mode of transmitting and controlling propulsion power of a machine. The term ''transmission'' properly refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive vehicles), differe ...
was transversely mounted in a cassette. It was connected to the shaft drive to the rear wheel via a spiral bevel gear angle drive. The engine was, like all MV four-cylinder models, assembled by hand. The diameter of the Ceriani
telescopic fork A telescopic fork is a form of motorcycle front suspension whose use is so common that it is virtually universal. The telescopic fork uses fork tubes and sliders which contain the springs and dampers. The main advantages of the telescopic fork ...
s was increased from 35 to 38 mm, and double
disc brake A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or a "rotor" to create friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hol ...
s were used on all models. The gear shift was transferred to the left side of the engine. The red livery, the
suede Suede (pronounced ) is a type of leather with a fuzzy, napped finish, commonly used for jackets, shoes, fabrics, purses, furniture, and other items. The term comes from the French , which literally means "gloves from Sweden". The term was fir ...
-covered seat and the Smiths round instruments made this a sporty and elegant motorcycle.


Model variants

* MV Agusta 750 Sport America (1975-1977): Basic 789 cc version derived from the
MV Agusta 750 S The MV Agusta 750 S also known as the ''MV Agusta 750 Sport'', was a motorcycle manufactured by the MV Agusta company from 1970 to 1975. Production total of this model series was 583 machines. Development The previous model, the MV Agusta 600, wa ...
. * MV Agusta 800 SS Super America (1976-1978): Enhanced version ( @ 9000 rpm) of the 789 cc base engine for the US market, optionally available with a 4-in-1 Magni exhaust system and
magnesium Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic ta ...
wheels. * MV Agusta 800 SS Super Daytona America (1976–78): Further increased in performance with a Magni kit, a full fairing was also offered. * MV Agusta 850 SS Monza or MV Agusta 850 SS Boxer (1977–78): Bore increased to 69 mm to give 837 cc capacity and a Magni Motorkit fitted to give @ 9000 rpm. The full fairing version was not available in Germany. 27 machines of this model were made.


Hansen & Schneider special models

The importer for Germany, Hansen GmbH in
Baden-Baden Baden-Baden () is a spa town in the states of Germany, state of Baden-Württemberg, south-western Germany, at the north-western border of the Black Forest mountain range on the small river Oos (river), Oos, ten kilometres (six miles) east of the ...
, arranged the production of special models in 1976 with the consent of the factory. These were "luxury sports machines", and the impression was created that these motorcycles were made more as a kind of hobby than commercial reasons. The displacement was increased over the factory 837 cc. At the same time, the crankshaft was changed, Mahle
piston A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tig ...
s and a sportier camshaft fitted. The standard suspension (steering head angle 63 degrees, caster 110 mm) with Ceriani fork front (125 mm travel) and Sebac gas struts rear (70 mm travel) were retained. Only the 1000 Agostini got the Magni frame and was thus nearly 20 kg lighter than a comparable production model. The new models which were officially offered only in Germany, but were available worldwide through Hansen, were: * 900 S Arturo Magni Cento Valli - The engine was bored and stroked from the 750 Sport America engine to increase capacity to 892 cc. * 1000 S Corona - The engine stroke was further increased to give a 954 cc capacity. * 1100 Grand Prix - The bore was increased by 4 mm to give a 1066 cc capacity. This larger bore required a new cylinder block. * 1000 Agostini - 954 cc capacity. Fitted with chain rear drive


Magni special models

Arturo Magni Arturo Magni (Usmate Velate, 24 September 1925 - Samarate, 2 December 2015) was an Italian engineer racing team manager and entrepreneur. Early life Arturo Magni was born in Usmate Velate, near Milan in the Lombardy region of Italy on 24 Septem ...
, former race director of MV Agusta, independently developed motorcycles from the existing MV engines. The Magni kit consisted of an 11 kg lightweight frame, which was based that used on the F750 S Imola racer, electronic ignition and 30 or 32 mm PHF
carburetor A carburetor (also spelled carburettor) is a device used by an internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the venturi tube in the main meteri ...
s. The models use a chain for the final drive rather than the more usual shaft drive. Two Magni models were first produced in 1978: * Magni 832 (Also known as the ''Magni 850'') - engine from the MV Agusta 850 SS Monza. * Magni 861 - Bore increased by 1 mm to 70 mm, to give 861 cc capacity. Magni still produce their models to special order.


End of production

With the departure of MV Agusta from racing in 1976, the production of the street models were reduced. Although prototypes were developed until 1977, they were not implemented due to the financial situation of the company - MV made little profit from motorcycles. The production of the model MV Agusta 750 S America was maintained until 1978. The last of the 540 machines made were sold officially 1980. A total of 1276 four-cylinder machines were produced from 1966 to 1980.Motorrad 5/2003 p.21


Gallery


References


Bibliography

* * * * * * {{MV Agusta 750 Sport America Motorcycles introduced in 1975 Shaft drive motorcycles Sport bikes