1963 Yamaha YA-6 Injection System Vintage Motorcycle Ad

Description

Yamaha YA6 - This one's a real surprise package. Yamaha's rotary-valve design makes 125cc's feel and perform like a lot more. It's a great first choice for the super-lightweight beginner, but has the acceleration and handling to please the most experienced riders. 4. With Yamaha's injection system, 2-cycle lubrication is automatically controlled by engine RPM...
...The heart of the Injection System, an oil injector pump, automatically meters oil in precisely measured amounts into the fuel-air mixture between the carburetors and intake ports. Gas-oil ratio is controlled and varied according to crankshaft RPM. The engine gets exactly the right amount of lubricant at any given speed...
Original, Vintage Magazine Ad
Size: Approx. 8" x 10 1/2" (20 cm x 27 cm).
Condition: Good
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