Engine
The 1989 Yamaha LB 70 Chappy carried a single cylinder, two-stroke engine with a horsepower (HP) of 4.80 at 6,000 revolutions per minute (RPM). The torque consisted of 4.4 ft.lbs at 4,000 RPM. The Yamaha Chappy had the top speed of 45 miles per hour (mph) and the compression consisted of 5:8:1. In addition, the Chappy's mechanical ignition was easy to maneuver and the bike is equipped with an automatic lubrication system. The fuel consumption of the Chappy consisted of 33.3 km/l or 78.41 mpg.
Suspension
The Yamaha Chappy had a CrMo steel frame type with a standard fork front suspension while the rear suspension consisted of monoshock. Both front and rear tires had 4.00-8-4 PR dimensions. There were drum brakes in the front and rear. In addition, the clutch of the Yamaha Chappy was an automatic constant mesh.
Dimensions
The dimensions of the Yamaha Chappy supported the bike's light, convenient reputation. The dry weight consisted of 160.9 lbs. with the power/weight ratio of 160.9 lbs. The power weight ratio of the Chappy was 0.0658 HP/kg while the seat height, if adjustable, was 28.0 inches. The Chappy was compact, at 36.4 inches high with the length of 61.6 inches and the width of 26.2 inches. The wheelbase rested at 41.3 inches.