1965 Yamaha Rotary Jet 80 - an inside look at the greatest going

Yamaha - the 2-stroke with oil injection. Yamaha's Rotary Jet 80 gives you the advantages of 2-cycle performance, without the nuisance of pre-mixing. As you ride, the Oil Injection System mixes precisely measured amounts of clean oil into the fuel / air mixture. The gas / oil ratio is RPM controlled, so no oil is wasted.

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