These are the known mechanical and performance specifications for your 1989 Yamaha LB 70 Chappy.
Basic Specs
Engine
Displacement65.00 ccm (3.97 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM6000
Compression5.8:1
Bore/Stroke47.0 x 42.0 mm (1.9 x 1.7 inches)
Valves/Cylinder2
FuelingCarburettor. Mikuni
Ignitionmechanical
Exhaustsingle pipe with catalyzer
LubricationAutolube
CoolingAir
Drivetrain
GearboxAutomatic
Final DriveChain
Clutchautomatic constant mesh
Driveline
Performance
Horespower4.80 HP (3.5 kW)
Torque5.90 Nm (0.6 kgf-m or 4.4 ft.lbs)
Top Speed72.4 km/h (45.0 mph)
Fuel Economy & Polution
Fuel Consumption3.00 litres/100 km (33.3 km/l or 78.41 mpg)
Fuel Capacity3.50 litres (0.92 gallons)
Emissions69.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeCrMo steel
Rake
Trail
Front Suspensionstandard forks
Front Travel
Rear Suspensionmonoshock
Rear Travel
Seat
Seat Height710 mm (28.0 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height925 mm (36.4 inches)
Total Length1,565 mm (61.6 inches)
Total Width665 mm (26.2 inches)
Ground Clearance135 mm (5.3 inches)
Wheelbase1,050 mm (41.3 inches)
Dry Weight73.0 kg (160.9 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre4.00-8-4PR
Rear Tire/Tyre4.00-8-4PR
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments
Real nice mini chopper