REF # DESCRIPTION SIZE PITCH REQ'D Yamaha 650/701 Early Models A Head Hex Head Bolt 8 x 50 1.25 10 B Cylinder Hex Head Bolt 10 x 40 1.25 4 C Cylinder Hex Head Bolt 10 x 55 1.25 2 D Crankcase Hex Head Bolt 8 x 85 1.25 10 Yamaha 701 WaveRaider B Cylinder Hex Head Bolt 10 x 40 1.25 4 C Cylinder Hex Head Bolt 10 x 55 1.25 2 D Crankcase Hex Head Bolt 8 x 85 1.25 10 E Crankcase Hex Head Bolt 8 x 45 1.25 8 Yamaha 800 GP/XL D Crankcase Hex Head Bolt 8 x 85 1.25 10 F Crankcase Hex Head Bolt 6 X 80 1.25 3 Yamaha 1100/1200 (NPV) A Head Hex Head Bolt 8 x 50 1.25 10 B Cylinder Hex Head Bolt 8 x 85 1.25 6 C Cylinder Hex Head Bolt 10 x 55 1.25 2 D Crankcase Hex Head Bolt 8 x 85 1.25 10 G Head Hex Head Bolt 8 x 65 1.25 4