Engine - Yamaha SR400 2014 Service Manual

ENGINE INSPECTION .....................................................................................5-1
MEASURING THE COMPRESSION PRESSURE.....................................5-1
ENGINE REMOVAL .........................................................................................5-2
INSTALLING THE ENGINE........................................................................5-5
CYLINDER HEAD.............................................................................................5-6
REMOVING THE CYLINDER HEAD..........................................................5-7
CHECKING THE CYLINDER HEAD ..........................................................5-8
CHECKING THE CAMSHAFT....................................................................5-8
CHECKING THE TIMING CHAIN AND CAMSHAFT SPROCKET ............5-9
CHECKING THE TIMING CHAIN TENSIONER.........................................5-9
INSTALLING THE CYLINDER HEAD ........................................................5-9
ROCKER ARMS .............................................................................................5-13
REMOVING THE ROCKER ARMS AND ROCKER ARM SHAFTS.........5-14
CHECKING THE ROCKER ARMS AND ROCKER ARM SHAFTS .........5-14
CHECKING THE CYLINDER HEAD COVER, TAPPET COVER, AND
VIEWER PLUG........................................................................................5-15
INSTALLING THE ROCKER ARM SHAFTS AND ROCKER ARMS .......5-15
VALVES AND VALVE SPRINGS...................................................................5-16
REMOVING THE VALVES.......................................................................5-17
CHECKING THE VALVES AND VALVE GUIDES ...................................5-17
CHECKING THE VALVE SEATS .............................................................5-19
CHECKING THE VALVE SPRINGS.........................................................5-20
INSTALLING THE VALVES .....................................................................5-21
CYLINDER AND PISTON...............................................................................5-23
REMOVING THE PISTON .......................................................................5-24
CHECKING THE CYLINDER AND PISTON ............................................5-24
CHECKING THE PISTON RINGS............................................................5-25
CHECKING THE PISTON PIN .................................................................5-26
CHECKING THE TIMING CHAIN GUIDES..............................................5-26
INSTALLING THE PISTON AND CYLINDER ..........................................5-26
CLUTCH .........................................................................................................5-28
REMOVING THE CLUTCH ......................................................................5-31
CHECKING THE FRICTION PLATES......................................................5-31
CHECKING THE CLUTCH PLATES ........................................................5-31
CHECKING THE CLUTCH SPRINGS......................................................5-32
CHECKING THE CLUTCH HOUSING .....................................................5-32
CHECKING THE CLUTCH BOSS............................................................5-32
CHECKING THE PRESSURE PLATE .....................................................5-32
CHECKING THE CLUTCH PUSH RODS ................................................5-32
CHECKING THE PRIMARY DRIVE GEAR..............................................5-33
CHECKING THE PRIMARY DRIVEN GEAR ...........................................5-33

ENGINE

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