1967 Yamaha RA31A Pictures
Add Your Photos!The Yamaha RA31A ridden to world championship victories by Bill Ivy in 1967 and Phil Read in 1968.
Engine Type: Water cooled V4 two-stroke
Bore & Stroke: 35mm x 32.4mm
Capacity: 124.6cc
Induction: Rotary Disc Valve
Carburettor: Mikuni VM22
Ignition: Magneto/Transistor
Power Output: over 42bhp @ 17,400 rpm
Transmission: Dry clutch 9 speed
Weight: 95kg