Yamaha RD80LC: history, specs, pictures
The RD 80LC was the baby of the family, a bit cheeper to insure falling in to the sub 100cc group. It sold for just 2 years, It was not that popular a little spindely and when you could have the 125 for not a lot more wich had a big bike feel about it why go for the 80lc. Still quight a few did get sold and now days they are very rare to find and when you do come across one its usualy a shed. They had a iron barrel not an alloy one like the rest of the family. Quight a few people put a 125lc lump in to the frame and theys realy did fly. I had a frend who did this after crashing his 125lc and picking up a shed 80lc for £100 he ezaly fitted the lump and everything over the weekend. It was so fast it left my MK2 125lc standing.
Yamaha RD 80LC Specification
- Introduced : March 1982 Discontinued : July 1984
- Frame/ engine nos : 11A-000101
- Colours : White or candy blue
- Bore and stroke : 49mm X 42mm
- Capacity : 79cc
- Power : 10bhp
- Gears : 6
- Wheels : 18-inch front and rear
- fuel capacity : 2.2 gallons
- Speed : 65ish mph Standard
- Weight : 180 lbs
- MPG : 65/75
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| Manufacturer | Yamaha |
|---|---|
| Also called | RD 80 LC |
| Production | 1982 |
| Engine | single cylinder, two-stroke |
| Bore / Stroke | 49.0mm x 42.0mm |
| Top speed | 80 mph (128 km/h) |
| Horse Power | 9.79 HP (7.3 KW) @ 8500RPM |
| Torque | 0.66 ft/lbs (0.9 Nm) @ 7500RPM |
| Fuel system | carburettor. mikuni vm18 |
| Ignition type | cdi |
| Battery | 7.1:1 |
| Transmission | Gear box: 6-speed Final Drive: chain |
| Suspension | Front: telescopic forks Rear: yamaha monoshock |
| Brakes | Front: single disc. single sliding piston caliper Rear: expanding brake (drum brake) |
| Wheelbase | 0.04 inches (1 mm) |
| Dimensions | L 0.04 inches (1 mm) W 26.97 inches (685 mm) H 0.04 inches (1 mm) |
| Seat height | 30.12 inches (765 mm) |
| Weight | 171.96 pounds (78.0 Kg) |
| Fuel capacity | 2.64 Gallon (10.00 Liters) |
| Manuals | Service Manual |
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The Yamaha RD80LC was a single cylinder, two-stroke standard produced by Yamaha in 1982. It could reach a top speed of 80 mph (128 km/h). Max torque was 0.66 ft/lbs (0.9 Nm) @ 7500 RPM. Claimed horsepower was 9.79 HP (7.3 KW) @ 8500 RPM.
Engine
The engine was a oil & air cooled single cylinder, two-stroke. A 49.0mm bore x 42.0mm stroke result in a displacement of just 79.0 cubic centimeters.
Drive
The bike has a 6-speed transmission. Power was moderated via the wet plate.
Chassis
Stopping was achieved via single disc. single sliding piston caliper in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic forks while the rear was equipped with a yamaha monoshock. The RD80LC was fitted with a 2.64 Gallon (10.00 Liters) fuel tank. The bike weighed just 171.96 pounds (78.0 Kg). The wheelbase was 0.04 inches (1 mm) long.