The Yamaha SR500 (1978-79) motorcycle has a four-stroke, single-cylinder, SOHC engine with a capacity of 499cc/30.4 cu-in. It has a compression ratio of 9.0:1 and an induction system with a 34mm Mikuni VM34SS carburetor. The bike has a maximum power output of 31.5 hp/23.5 kW at 6500 rpm and a maximum torque of 36.3 Nm/26.8 lb-ft at 5500 rpm. The SR500 has a five-speed transmission and a chain final drive. The frame is a half-duplex cradle with a 35mm telescopic fork front suspension and a dual shock, 5-way adjustable spring preload rear suspension. The bike has a single 200mm disc front brake and a 150mm drum rear brake. The front and rear tire sizes are 3.50 S19 and 4.00 S18, respectively. The SR500 has a rake of 27.5 degrees and a trail of 117mm/4.6in. The dimensions of the bike are a width of 845mm/33.3in, a height of 1155mm/45.5in, and a wheelbase of 1405mm/55.3in. The seat height is 810mm/32in, the dry weight is 158kg/348lbs, and the wet weight is 173kg/381.4lbs. The fuel capacity is 12 liters/3.1 US gallons, and the bike has an average consumption of 63 mpg. It can do a standing 1/4 mile in 15.3 seconds and has a top speed of 95 mph/152.8 km/h.
Technical specifications:
Make Model: Yamaha SR 500
| Year | 1978 – 79 |
|---|---|
| Engine | Four stroke, single cylinder, SOHC, 2 valves per cylinder. |
| Capacity | 499 cc / 30.4 cu-in |
| Bore x Stroke | 87 84 mm |
| Cooling System | Air cooled |
| Compression Ratio | 9.0:1 |
| Oil Capacity | 2.4 Litres |
| Induction | 34mm Mikuni VM34SS carburetor |
| Ignition | CDI |
| Starting | Kick |
| Max Power | 31.5 hp / 23.5 kW @ 6500 rpm |
| Max Torque | 36.3 Nm / 26.8 lb-ft @ 5500 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Frame | Half-duplex cradle |
| Front Suspension | 35mm telescopic forks |
| Front Wheel Travel | 150 mm / 5.9 in |
| Rear Suspension | Dual shock, 5-way adjustable spring preload. |
| Rear Wheel Travel | 105 mm / 4.1 in |
| Front Brakes | Single 200mm disc |
| Rear Brakes | 150mm drum |
| Front Tyre | 3.50 S19 |
| Rear Tyre | 4.00 S18 |
| Rake | 27.5 degrees |
| Trail | 117 mm / 4.6 in |
| Dimensions | Width 845 mm / 33.3 in Height 1155 mm / 45.5 in |
| Wheelbase | 1405 mm / 55.3 in |
| Seat Height | 810 mm / 32 in |
| Dry Weight | 158 kg / 348 lbs |
| Wet Weight | 173 kg / 381.4 lbs |
| Fuel Capacity | 12 Litres / 3.1 US gal |
| Consumption Average | 63 mpg |
| Standing 1/4 Mile | 15.3 sec |
| Top Speed | 95 mph / 152.8 km/h |
