Air cooled, four stroke, parallel twin cylinder, SOHC, 2
valve per cylinder.
Capacity
743
Bore x Stroke
80 x 74 mm
Compression Ratio
8.9:1
Induction
2x 36mm Dell'Orto PHF carbs.
Ignition /
Starting
Bosch / electric
Max Power
66 hp @ 7300 rpm
Max Torque
Transmission /
Drive
5 Speed / chain
Front Suspension
Ceriani telescopic forks
Rear Suspension
Swinging fork, Ceriani adjustable shocks
Front Brakes
2X 230mm drum
Rear Brakes
200mm drum
Front Tyre
3.50-18
Rear Tyre
4.0-18
Dry-Weight
Fuel Capacity
SF1 (1972)
Several mechanical changes were introduced on this model, including a new
cylinder head and crankshaft, and the replacement of the 30mm VHB Dell'Orto with
larger 36mm PHF instruments with accelerator pumps. The exhaust balance pipe was
not only vastly increased in size but its location was also transferred, to
underneath the engine. Conti replaced Lafranconi as the silencer supplier, which
also meant an entirely new shape. Lucas switchgear replaced the earlier
Italian-made assemblies, while a mechanical piston (incorporated within the
casting) was fitted between the two cams on the brake to ensure improved
operation.
The first Italian manufacturer to have faith in the revival of
big motorcycles was Laverda. In 1967 the company produced a two-cylinder,
four-stroke 650-cc. model, which was immediately followed by a 750-cc. version
that was available in both a touring and a sports model.
When the Italian Motorcycle Federation organized its first 500-kilometer race
for production vehicles in 1970, Laverda introduced the latest version of its
750, the SF, at the Monza track. The 750 SF had large-diameter drum brakes that
were built at Laverda's Vicenza plant.
The official Laverda racers, Augusto Brettoni and Angiolini, won the race, and
both men urged the company to continue racing in the 750 class. In 1969 the
Laverda 750 S won the Oss 24 Hours, a tough race that was run in Holland. The
motorcycle won again in 1970 with Brettoni and Dossena. From that point on, the
Laverda was
a regular at Coupe d'Endurance races.
In 1971 the Laverda 750 SFC was put on sale. It was a top-notch racing
motorcycle, winning its debut race at Zeltweg with Brettoni in the saddle. It
won tht Oss 24 Hours and entered the Bol d'Or at Le Mans, but without success.
Despite this setback the SFC went on to win many races because of its resistance
to stress.
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