YAMAHA YZF R1 BLACK
YAMAHA YZF R1 BLUEENGINE
Ultra-lightweight, compact, 998cc, DOHC, 16-valve, liquid-cooled, 40 degree inclined, in-line four-cylinder engine with "crossplane" style crankshaft.
The key components of this cutting edge engine design are the "crossplane" crankshaft and an uneven firing order. Both of these features are used on
Yamaha's championship winning M1 MotoGP racer. Please note … this is not a "big bang" engine. The R1 departs from the norm for in-line 4 cylinder
engines and the 180 degree alignment of the crank pins (where the connecting rods attach to the crankshaft), and locates the center two rods
at a 90 degree plane from the outer cylinders. This means instead of the crank pins aligned on the same plane (a straight line drawn through
the center of the crankshaft), they align on 2 planes in the form of a cross ... or "crossplane". Working in conjunction with the crossplane
crank is an uneven firing order.
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