Yamaha RD400
| Manufacturer | Yamaha |
|---|---|
| Also called | RD400C, RD 400 C, RD 400 |
| Production | 1976 - 1979 |
| Class | Classic |
| Engine | twin, two-stroke |
| Bore / Stroke | 64.0mm x 62.0mm |
| Compression ratio | 6.2:1 |
| Top speed | 109 mph (175 km/h) |
| Horse Power | 42.11 HP (31.4 KW) @ 7500RPM |
| Sparkplug | NGK B8ES '76-79 |
| Battery | YUASA 12N5-5A-3B '76-79 |
| Transmission | Gear box: 6-speed Final Drive: chain |
| Suspension | Front: Telescopic Forks Rear: Swingarm |
| Brakes | Front: single disc Rear: single disc |
| Front Tire | 3.00-18 |
| Rear Tire | 3.50-18 |
| Wheelbase | 52.01 inches (1321 mm) |
| Dimensions | L 78.5 inches (1994 mm) W 29.88 inches (759 mm) |
| Seat height | 31.5 inches (800 mm) |
| Weight | (dry), 175.0 kg (wet) |
| Fuel capacity | 4.36 Gallon (16.50 Liters) |
| Related | Yamaha RD250LC, Yamaha RD200, Yamaha RD250, Yamaha RD350, Yamaha RD400 |
| Manuals | Service Manual |
| Tech Specs · Brochures · Reviews · Ads · Videos | |
The Yamaha RD400 was a twin, two-stroke Classic motorcycle produced by Yamaha between 1976 and 1979. It could reach a top speed of 109 mph (175 km/h). Claimed horsepower was 42.11 HP (31.4 KW) @ 7500 RPM.
Engine
The engine was a air cooled twin, two-stroke. A 64.0mm bore x 62.0mm stroke result in a displacement of just 399.0 cubic centimeters. Fuel was supplied via a membrane.
Drive
The bike has a 6-speed transmission. Power was moderated via the Wet multi-plate.
Chassis
It came with a 3.00-18 front tire and a 3.50-18 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a Telescopic Forks while the rear was equipped with a Swingarm. The RD400 was fitted with a 4.36 Gallon (16.50 Liters) fuel tank. The wheelbase was 52.01 inches (1321 mm) long.
1976 RD400-C
1977 RD400
1978 RD400
1979
- Last year exported to US.
1976 - 1980 Yamaha RD 400
The Yamaha RD 400 has already become a classic in its own time. Fully equipped with speedometer, tachometer, hydraulically operated disc brakes on front and rear.
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