Disassembling The Cylinder Block - Yamaha F150A Service Manual

Disassembling the cylinder block

1. Remove the crankcase "1".
1
2. Remove the main bearing cap "1".
1
3. Remove the connecting rod bolts "1" and
connecting rod caps "2", and then
remove the piston and connecting rod
assemblies "3".
TIP:
• To prevent mixing the piston and connect-
ing rod assemblies "3" and connecting rod
caps "2", mark each with an identification
number "a" of the corresponding cylinder.
• Make sure to keep the parts in the order of
removal.
a
4. Remove the crankshaft "1", crankshaft
journal bearings "2", thrust bearing "3",
and oil seal "4".
5. Remove the collar "1".
1
4
7-63
Crankcase
1
2
2
2
3
2
b
3
2
0
1
2
3
3
4
5
2
6
1
7
2
4
8
9
a
4
10
A