Disassembling The Cylinder Block - Yamaha F150B Service Manual

POWR

Disassembling the cylinder block

1. Remove the crankcase bolts in the
sequence numbers (a, b, · · ·).
l
b
f
j
g
c
m
TIP:
Do not remove the plugs a from the crank-
case.
2. Remove the connecting rod bolts and the
connecting rod caps b, and then remove
the connecting
assemblies c.
c
b
TIP:
• Make sure to keep the bearings in the order
as they were removed.
• Mark each piston with an identification
number a of the corresponding cylinder.
• Do not mix the connecting rods and caps.
Keep them organized in their proper
groups.
3. Remove the main bearing cap bolts in
the sequence numbers (a, b, · · ·).
7-53
Power unit
k
a
e
i
h
a
d
n
rod and piston
a
b
f
c
4. Remove the crankshaft.
5. Remove the collar d.
d
g
Bearing separator e: 90890-06534
Gear puller f: 90890-06540
General cylindrical tool g:
c = 19.9mm (0.78 in)
d = 90.0mm (3.54 in)
a
e
d
c
e
g
d
f