Yamaha YZF R1 Crossplane Crankshaft Technology Explained!

Crossplane Crankshaft

Crossplane Crankshaft Yamaha’s R1 has a crossplane crankshaft. The crossplane crankshaft is designed to reduce inertia torque created by the engine to a minimum. A conventional four-cylinder engine (flat-plane crank) has it’s crankpins all in the same plane, with the two inner ones 180 degrees from the two outer ones. The inner two pistons move up and down together, and so do

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