Yamaha LB70 Chappy: history, specs, pictures
| Yamaha LB70 Chappy | |
| Manufacturer | |
|---|---|
| Also called | LB 70 Chappy |
| Production | 1989 |
| Engine | single cylinder, two-stroke |
| Bore / Stroke | 47.0mm x 42.0mm |
| Top Speed | 45 mph (72 km/h) |
| Horsepower | 4.69 HP (3.5 KW) @ 6000RPM |
| Torque | 4.35 ft/lbs (5.9 Nm) @ 4000RPM |
| Fuel System | carburetor. mikuni |
| Ignition | mechanical |
| Transmission | Gear box: automatic Final Drive: chain |
| Suspension | Front: standard forks Rear: monoshock |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 4.00-8-4pr |
| Rear Tire | 4.00-8-4pr |
| Wheelbase | 41.34 inches (1050 mm) |
| Length | 61.61 inches (1565 mm) |
| Width | 26.18 inches (665 mm) |
| Height | 36.42 inches (925 mm) |
| Seat Height | 27.95 inches (710 mm) |
| Weight | 160.94 pounds (73.0 Kg) (dry), |
| Recommended Oil | Yamalube 10w-40 |
| Fuel Capacity | 0.92 Gallon (3.50 Liters) |
| Fuel Consumption | 3.00 liters/100 km (33.3 km/l or 78.41 mpg) |
| Manuals | Service Manual |
The Yamaha LB70 Chappy was a single cylinder, two-stroke standard produced by Yamaha in 1989. It could reach a top speed of 45 mph (72 km/h). Max torque was 4.35 ft/lbs (5.9 Nm) @ 4000 RPM. Claimed horsepower was 4.69 HP (3.5 KW) @ 6000 RPM.
Engine[edit | edit source]
The engine was a air cooled single cylinder, two-stroke. A 47.0mm bore x 42.0mm stroke result in a displacement of just 65.0 cubic centimeters. Fuel was supplied via a membrane.
Drive[edit | edit source]
The bike has a automatic transmission. Power was moderated via the automatic constant mesh.
Chassis[edit | edit source]
It came with a 4.00-8-4pr front tire and a 4.00-8-4pr rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a standard forks while the rear was equipped with a monoshock. The LB70 Chappy was fitted with a 0.92 Gallon (3.50 Liters) fuel tank. The bike weighed just 160.94 pounds (73.0 Kg). The wheelbase was 41.34 inches (1050 mm) long.