These are the known mechanical and performance specifications for your 1976 Suzuki RV 90.
Basic Specs

Engine
Displacement88.00 ccm (5.37 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression6.2:1
Bore/Stroke50.0 x 45.0 mm (2.0 x 1.8 inches)
Valves/Cylinder
Fueling
Ignition
Exhaust
Lubrication
CoolingAir
Performance
Horespower6.30 HP (4.6 kW)
Torque
Top Speed85.0 km/h (52.8 mph)
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity3.00 litres (0.79 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 Weight86.0 kg (189.6 pounds)
Wheels & Brakes
Front Tire/Tyre6.70-10
Rear Tire/Tyre6.70-10
Front BrakesExpanding brake
Front Brake Diameter
Rear BrakesExpanding brake
Rear Brake Diameter
Wheels
Comments