Yamaha F150B Service Manual page 213

Cylinder head
........................................................................... 7-36
Removing the cylinder head .................................................... 7-38
Checking the valve lifter .......................................................... 7-38
Checking the cylinder head ..................................................... 7-38
Checking the valve spring ....................................................... 7-39
Checking the valve .................................................................. 7-39
Checking the valve guide ........................................................ 7-40
Replacing the valve guide ....................................................... 7-40
Checking the valve seat .......................................................... 7-41
Refacing the valve seat ........................................................... 7-41
Assembling the cylinder head ................................................. 7-43
Installing the cylinder head ...................................................... 7-44
Cylinder block
.......................................................................... 7-45
Removing the oil pump assembly ........................................... 7-48
Removing the oil filter bracket ................................................. 7-48
Removing the anode (cylinder block) ...................................... 7-48
Removing the crankcase cover ............................................... 7-48
Disassembling the oil pump assembly .................................... 7-48
Checking the oil pump assembly ............................................. 7-48
Assembling the oil pump assembly ......................................... 7-49
Installing the oil pump assembly ............................................. 7-49
Installing the crankcase cover ................................................. 7-50
Installing the oil filter ................................................................ 7-50
Installing the anode (cylinder block) ........................................ 7-51
Crankcase
.................................................................................. 7-52
Disassembling the cylinder block ............................................ 7-53
Checking the piston diameter .................................................. 7-54
Checking the cylinder bore ...................................................... 7-54
Checking the piston ring .......................................................... 7-54
Checking the piston ring end gap (reference) ......................... 7-54
Checking the piston ring groove .............................................. 7-55
Checking the piston ring side clearance .................................. 7-55
Checking the connecting rod big end side clearance .............. 7-55
Checking the crankshaft .......................................................... 7-55
Checking the crankpin oil clearance ........................................ 7-56
Selecting the connecting rod bearing ...................................... 7-57
Checking the crankshaft journal oil clearance ......................... 7-58
Selecting the main bearing ...................................................... 7-60
Assembling the cylinder block ................................................. 7-61
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