1978 Yamaha SR500

1978 Yamaha SR500

The 1978 1978 Yamaha SR500 packs a 499cc SOHC single engine with 32hp into a standard motorcycle package from Yamaha.

Specifications

Engine

Type
SOHC single
Displacement
499 cc
Cylinders
1
Power
32 hp @ 6500 rpm
Torque
37.0 Nm
Compression
Bore × Stroke
87.0 × 84.0 mm
Cooling
Air-cooled
Fuel System
Mikuni carburetor

Chassis & Transmission

Frame
Steel semi-double cradle
Front Suspension
Telescopic fork
Rear Suspension
Twin shock
Front Brake
Single disc
Rear Brake
Drum
Front Tyre
Rear Tyre
Transmission
5-speed
Final Drive
Chain

Performance

Top Speed
145 km/h (90 mph)
¼ Mile

Dimensions & Weight

Dry Weight
158 kg (348 lbs)
Wet Weight
172 kg (379 lbs)
Seat Height
800 mm
Wheelbase
1390 mm
Ground Clearance
Fuel Capacity
12.0 L

History & Story

Yamaha's 1978 Yamaha SR500 arrived in 1978 as a standard motorcycle designed for the discerning rider. Produced in Japan, it quickly earned recognition as a capable standard motorcycle from the 1970s.

The 1978 Yamaha SR500 is motivated by a 499cc SOHC single single-cylinder unit delivering 32hp at 6500 rpm. Breathing through Mikuni carburetor and kept cool by air-cooled, the engine drives through a 5-speed transmission with chain final drive.

Built around a steel semi-double cradle frame, the 1978 Yamaha SR500 suspends its 158 kg (348 lbs) on telescopic fork forks and twin shock rear units. Braking relies on single disc at the front and drum at the rear, with a 1390 mm wheelbase providing stability.

Performance-wise, the 1978 Yamaha SR500 achieves a claimed top speed of 145 km/h (90 mph). With a fuel capacity of 12.0 liters, it offers reasonable range for standard motorcycle duties. The seat height of 800 mm makes it comfortable for most riders.

Today, the 1978 Yamaha SR500 is considered a respected classic that attracts serious collector interest and continues to appreciate. Parts availability is rated as good, making ownership relatively straightforward. It remains an icon of Yamaha motorcycling from 1970s.

Known Issues

  • Charging system rotor failures on early models
  • Speedometer gear wear

Fun Facts

  • The 1978 Yamaha SR500 is widely regarded as a milestone in motorcycle history
  • The 1978 Yamaha SR500 was produced in Yamaha's Japan facilities
  • The 1978 Yamaha SR500 featured a steel semi-double cradle frame typical of 1970s design philosophy

Collector Information

Parts Availability
Good
Collector Rating
7/10

Resources & Parts