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. A traditional in-line 4 cylinder's firing order is normally 1,2,4,3 with a 180 degree interval. This R1 engine fires 1,3,2,4 cylinders and the firing intervals are uneven at 270 / 180/ 90 /180 degrees. What all this means to the rider is the most linear torque possible and amazing throttle control. This engine design allows a whole new level of rider - machine communication. One of the most important benefits is the outstanding cornering performance that increased engine control allows.
This is confirmed Promotion Supervisor YMKI Indra Dwi Sunda when contacted Legal, Monday (1/11/2010).
According to him, YMKI as the sole agent (ATPM) Yamaha motorcycles can not necessarily bring existing products into Indonesia in the global market.
"Actually, all the models we may enter into Indonesia, but we need to check the market first, judging whether or not a big potential here," said Indra.
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