These are the known mechanical and performance specifications for your 1990 Yamaha RX 100.
Basic Specs
Engine
Displacement100.00 ccm (6.10 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM5800
Compression10.1:1
Bore/Stroke50.0 x 50.0 mm (2.0 x 2.0 inches)
Valves/Cylinder2
FuelingCarburettor. Mikuni RM 18 mm
IgnitionCDI
ExhaustSingle stainless steel pipe
LubricationAutolube
CoolingAir
Drivetrain
Gearbox4-speed
Final DriveChain
Clutch74 tooth clutch housing bell
Driveline
Performance
Horespower11.50 HP (8.4 kW)
Torque8.60 Nm (0.9 kgf-m or 6.3 ft.lbs)
Top Speed125.0 km/h (77.7 mph)
Fuel Economy & Polution
Fuel Consumption2.50 litres/100 km (40.0 km/l or 94.09 mpg)
Fuel Capacity10.50 litres (2.77 gallons)
Emissions58.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeDouble cradle frame
Rake
Trail
Front SuspensionTelescopic oil damped
Front Travel
Rear SuspensionCoil spring oil damped
Rear Travel
Seat
Seat Height750 mm (29.5 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1 mm (0.0 inches)
Total Length2 mm (0.1 inches)
Total Width740 mm (29.1 inches)
Ground Clearance
Wheelbase1 mm (0.0 inches)
Dry Weight99.0 kg (218.3 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre2/18-4PR
Rear Tire/Tyre3/18-4PR
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments
It is a living legend in India even in 4s era.Rules the road for speed stability being a 100cc only.