Yamaha F150A Service Manual page 225

Removing the oil filter bracket ................................................. 7-60
Removing the crankcase cover ............................................... 7-60
Disassembling the oil pump .................................................... 7-60
Checking the oil pump ............................................................. 7-60
Assembling the oil pump ......................................................... 7-60
Installing the oil pump assembly ............................................. 7-60
Installing the crankcase cover ................................................. 7-60
Installing the oil filter bracket ................................................... 7-60
Crankcase ........................................................................ 7-61
Disassembling the cylinder block ............................................ 7-63
Checking the piston diameter .................................................. 7-64
Checking the cylinder bore ...................................................... 7-64
Checking the piston ring .......................................................... 7-64
Checking the piston ring end gap ............................................ 7-65
Checking the piston ring groove .............................................. 7-65
Checking the piston ring side clearance .................................. 7-65
Checking the piston pin boss inside diameter ......................... 7-65
Checking the piston pin diameter ............................................ 7-66
Checking the connecting rod small end inside diameter and
big end inside diameter ........................................................... 7-66
Checking the connecting rod big end side clearance .............. 7-66
Checking the crankshaft .......................................................... 7-66
Checking the big end oil clearance ......................................... 7-67
Selecting the crankpin bearing ................................................ 7-68
Crankpin bearing selection table ............................................. 7-70
Checking the journal oil clearance .......................................... 7-71
Selecting the crankshaft journal bearing ................................. 7-72
Crankshaft journal bearing selection table .............................. 7-74
Assembling the cylinder block ................................................. 7-75
Power unit
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