YAMAHA Y.F.I.S.Y.C.C.S Service Manual, published August 1984, part number 38X-28197-00. - Brand: YAMAHA - Model Name: XJ750D.D II - Y.F.I.S (Yamaha Fuel Injection System) - Y.C.C.S (Yamaha Cycle Communication System) Service manual. This manual does not contain information on the vehicle body or components. Please be aware of this. - Publication Date: August 1984 - Part Number: 38X-28197-00 Thank you for viewing.