HYOSUNG MS3 250 Sercie Manual page 43

ENGINE REMOVAL AND REMOUNTING
ENGINE REMOVAL ............................................................... 3 - 1
ENGINE REMOUNTING ......................................................... 3 - 4
ENGINE DISASSEMBLY
ENGINE COMPONENT INSPECTION AND SERVICE
CYLINDER HEAD .................................................................. 3 - 16
CYLINDER ........................................................................... 3 - 23
CAM CHAIN TENSION ADJUSTER AND TENSIONER ............... 3 - 24
PISTON AND PISTON RING ................................................... 3 - 25
CONROD .............................................................................. 3 - 28
CRANKSHAFT ..................................................................... 3 - 29
CRANK BALANCER AND BALANCER DRIVEN GEAR
(Only for
MOVABLE DRIVE FACE ......................................................... 3 - 31
CLUTCH SHOE / MOVABLE DRIVEN FACE .............................. 3 - 31
BELT ROLLER (Only for
CRANKCASE OIL SEAL, BEARING AND BUSHING .................. 3 - 36
STARTER CLUTCH .................................................................. 3 - 36
ENGINE REASSEMBLY
� � Mark an identification of assembly location on each removed part so that each will be restored to the
original position during reassembly.
� � Wash clean and dry the removed parts before inspecting and measuring.
� � Oil the rotating or sliding parts before assembly.
� � Make sure to use the correct type of lubricant where specified.
� � Check that each rotating or sliding part moves or operates smoothly after assembly.
� � Make sure to follow the bolt tightening order where specified.
� � If the correct length of the bolt is confused when tightening the crankcase or cover, insert all the bolts
and check that the tightening margin is equal in each bolt.
ENGINE
CONTENTS
.............................. 3 - 1
......................................................... 3 - 5
) ...................................................... 3 - 30
).................................... 3 - 35
......................................................... 3 - 37
CAUTION
......... 3 - 16
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