Sport Rider Photos
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The highlight of the engine updates is the addition of the Yamaha Chip Controlled Intake to the 41mm throttle bodies, which retain the ride-by-wire Yamaha Chip Controlled Throttle first introduced on the '06 model. The YCC-I is similar to the setup used on the '07 R1; at low rpm and small throttle openings, the intake extensions are in the lower position for a total funnel length of 66mm to optimize midrange acceleration. At 13,700 rpm and more than 60 degrees of throttle opening the extensions lift away, leaving the short, 26mm funnels to optimize top-end power. Last year's funnels were 31mm tall. A new airbox and relocated filter maximize ram-air efficiency; on the other end the crossover tube in the exhaust is larger and the muffler cap more compact.
Yamaha YZF R6 Yamaha Chip Controlled Intake