Variety Technology Yamaha R25

Yamaha YZF-R25 is equipped not only looks cool, but also a variety of new technologies to increase performance at the same value for money. Carrying the construction of 2-cylinder inline DOHC 4 valve in each cylinder. Character space fuel over bore with piston diameter of 60 mm and a stroke of 44.1 mm only. and has a compression ratio of 11.6: 1
DiASil Forged Piston Cylinder and Yamaha which has proven its resilience is also used on this bike. As for the fuel carburetion system, this bike brings injector fuel injection with 12 holes. As a result, this motor has a claimed maximum power of 35.54 hp (26.5 kW) at 12,000 rpm and 22.1 Nm of torque at 10,000 rpm! What are the technology?

Intake Manifold.
This side uses downdraft type or vertical angles sharply downwards, so that the mixture of gasoline and air flow more profusely. Then use 32 mm throttle body, 12-hole alloy injector for each cylinder.
Valve.
Direct use camshaft valve system, valve system kem straight punch, padded tapet and shim. Similar 250FI Ninja or Suzuki Satria F150. Perpaduannya narrow valve angle, in 12.75 ° were ex 13.5 °. To keep the movement gears, cams, cam tensioner nut pressed by half.
Combustion Chamber.
In the combustion chamber, the piston-type applications combined DiASil Cylinder forged. Then the low tension piston rings, rings with low friction. Then to reduce friction wear offset cylinder.
180 ° crankshaft.
R25 crankshaft has adopted a different position 180 °, meaning that the piston is at TDC and BDC in turns. This crankshaft produces high power but lose minimal pumping, so the maximum output. Then have a sporty character vibration, no vibration but reasonable as rising spin machine. Last crankshaft is equipped with balance shafts 1, with a single balancer shaft so compact and lightweight.
Upper Lower crankcase.
In contrast to the motor if the crankcase split class that comprises the right and left, so the upper and lower R25.

Deep Bottom Oil Pan.
This technology from MotoGP. The form of the placement of the oil pump at the lowest position, so that when the oil remains deselarasi acceleration and maximum sucked, Prevent water bubble that resulted in lubrication decreases.
ECU 46 Pin.
If you usually wear injection system ECU 33 pins, R25 much more, ie 46 pins. Because of the presence of additional sensors, namely oil pressure switch.
Position Electrode Coating.
This technology associated with painting frame, with this technology despite exposure to paint snow like in Europe remains safe.
Progressive Shape Pulley.
Puli in the oval throttle body deliberately contrived so that the output power is more smooth, because the valve opening baseball throttle directly together. If you want to stay aggressive pulleys modified so round.