The Manifold is an all-new design, a liquid-cooled, dohc, four-valve-per-cylinder powerplant displacing 847cc. It's counterbalanced and naturally "crossplane," as Subject Application Kevin Cameron reportable in his web news on the conception. Equivalent Triumph's three-cylinder engines, the Yamaha's three crankpins are distributed 120 degrees separate. "With this transcription, there is figure trembling of the engine's tract of body and cardinal crankshaft rpm motility caused by composer inertia force. But there is a side-to-side rocking. In contemporary engines, this 'rocking couple' is canceled by a crank-speed portion barb," wrote Cameron. The FZ-09 engine uses an flush burning dictate.
