Yamaha Motor Corporation, USA YFM660RR — CONTENTS

Adjusting the rear brake light switch ...........................................8-32 Clutch lever free play adjustment ..8-32 Drive chain slack check .................8-34 Drive chain slack adjustment.........8-35 Lubricating the drive chain.............8-36 Cable inspection and lubrication....8-37 Brake and shift pedal/brake and clutch lever lubrication .................8-38 Front upper and lower arm pivot lubrication.....................................8-39 Rear arm pivot lubrication..............8-40 Wheel removal...............................8-41 Wheel installation...........................8-42 Battery............................................8-43 Battery maintenance......................8-44 Fuse replacement..........................8-44 Replacing a headlight bulb ............8-45 Tail/brake light bulb replacement .................................8-50 Troubleshooting.............................8-51 Troubleshooting charts ..................8-52 PERIODIC MAINTENANCE AND ADJUSTMENT..................................

8-1 Owner’s manual and tool kit............8-1 Periodic maintenance/ lubrication ...................................... 8-3 Panel removal and installation ........ 8-5 Engine oil and oil filter cartridge......

8-6 Cooling system..............................8-11 Changing the coolant ....................8-12 Spark plug inspection....................8-15 Air filter element cleaning..............8-18 Spark arrester cleaning.................8-21 Carburetor adjustment...................8-22 Idle speed adjustment...................8-23 Valve clearance adjustment..........8-24 Throttle lever adjustment...............8-24 Front and rear brake pad inspection ....................................8-25 Brake fluid level inspection............8-26 Brake fluid replacement.................8-27 Front brake lever free play ............8-28 Brake pedal height adjustment......8-29 Parking brake adjustment .............8-30 8