Yamaha YFM45FAR, Service Manual, Page: 135 / 405

ENG
CHAPTER 4.
ENGINE
ENGINE REMOVAL ..................................................................................... 4-1
AIR DUCTS, MUFFLER AND EXHAUST PIPE .................................... 4-1
SELECT LEVER UNIT AND COOLANT RESERVOIR ......................... 4-3
HOSES AND LEADS ............................................................................ 4-4
ENGINE MOUNTING BOLTS ............................................................... 4-5
INSTALLING THE ENGINE .................................................................. 4-7
CYLINDER HEAD ......................................................................................... 4-8
REMOVING THE CYLINDER HEAD .................................................. 4-10
CHECKING THE TAPPET COVER .................................................... 4-11
CHECKING THE TIMING CHAIN TENSIONER ................................. 4-11
CHECKING THE CAMSHAFT SPROCKET ........................................ 4-11
CHECKING THE CYLINDER HEAD ................................................... 4-12
INSTALLING THE CYLINDER HEAD ................................................. 4-13
CAMSHAFT, ROCKER ARMS AND VALVES ........................................... 4-16
REMOVING THE CAMSHAFT AND ROCKER ARM .......................... 4-18
REMOVING THE VALVE AND VALVE SPRING ................................ 4-18
CHECKING THE CAMSHAFT ............................................................ 4-19
CHECKING THE ROCKER ARM AND CAMSHAFT .......................... 4-19
CHECKING THE VALVE AND VALVE SPRING ................................. 4-21
INSTALLING THE VALVE AND VALVE SPRING ............................... 4-25
INSTALLING THE CAMSHAFT AND ROCKER ARM ........................ 4-26
CYLINDER AND PISTON ........................................................................... 4-27
REMOVING THE PISTON .................................................................. 4-28
CHECKING THE TIMING CHAIN GUIDE ........................................... 4-28
CHECKING THE CYLINDER AND PISTON ....................................... 4-28
CHECKING THE PISTON RING ......................................................... 4-30
CHECKING THE PISTON PIN ............................................................ 4-31
INSTALLING THE PISTON ................................................................. 4-32
INSTALLING THE CYLINDER ............................................................ 4-33
RECOIL STARTER AND A.C. MAGNETO ............................................... 4-34
REMOVING THE A.C. MAGNETO ..................................................... 4-37
DISASSEMBLING THE RECOIL STARTER ....................................... 4-37
CHECKING THE CDI MAGNETO ....................................................... 4-37
CHECKING THE STARTER CLUTCH ................................................ 4-38
CHECKING THE STARTER PULLEY ................................................. 4-39
CHECKING THE RECOIL STARTER ................................................. 4-39
ASSEMBLING THE RECOIL STARTER ............................................. 4-39
INSTALLING THE A.C. MAGNETO .................................................... 4-40