These are the known mechanical and performance specifications for your 1992 Yangtze 750 Spezial B (with sidecar).
Basic Specs

Engine
Displacement745.00 ccm (45.46 cubic inches)
Type
DetailsTwo cylinder boxer, four-stroke
Max RPM
Compression5.7:1
Bore/Stroke78.0 x 78.0 mm (3.1 x 3.1 inches)
Valves/Cylinder2
Fueling
Ignition
Exhaust
Lubrication
CoolingAir
Drivetrain
Gearbox4-speed with reverse
Final DriveShaft drive (cardan)
Clutch
Driveline
Performance
Horespower24.00 HP (17.5 kW)
Torque
Top Speed90.0 km/h (55.9 mph)
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity23.00 litres (6.08 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front Suspension
Front Travel
Rear Suspension
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight
Wet Weight350.0 kg (771.6 pounds)
Wheels & Brakes
Front Tire/Tyre3.75-19
Rear Tire/Tyre3.75-19
Front BrakesExpanding brake
Front Brake Diameter
Rear BrakesExpanding brake
Rear Brake Diameter
Wheels
Comments