Yamaha YZF-R1B 2012 Service Manual

Also see for YZF-R1 2012: Service manual

Contents

FEATURES1-5Aims and advantages of using YCC-I system• Improved power bandBy using a dual intake funnel system, YCC-I optimizes the effectiveness of the fuel injection sys-tem to deliver an incredibly precise air/fuel mixture to the combustion chamber. This degree ofintake volume control gives both improved low to mid-range power, as well as improved power inthe higher rpm range. In effect, the YCC-I offers higher levels of power across the RPM range.• Electronically controlled intake lengthThe YCC-I system consists of four lightweight plastic resin funnels, and each of these is dividedinto an upper and lower portion. Depending upon operating conditions, the funnels can be joinedto form a single long funnel, or split to create a short funnel. This change is performed instanta-neously by an electrically controlled servo-motor which handles the function so smoothly that therider is unaware it is happening.A. Down position (long intake)(Low rpm to Mid rpm)B. Up position (short intake)(High rpm)Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk