Disassembling The Cylinder Block - Yamaha F25C Service Manual

Disassembling the cylinder block

1. Remove the thermostat
exhaust cover by removing the bolts in
the sequence shown.
2. Remove the oil filter.
NOTE:
Be sure to clean up any oil spills.
Oil filter wrench: 90890-01426
3. Remove the cover 1.
4. Remove the nut 2, then the balancer
piston 3.
6D55F11
cover and
S6D55730
5. Remove the crankcase bolts in the
6. Remove the connecting rod bolts and the
7. Remove the crankshaft and oil seals.
sequence shown.
connecting rod caps, and then remove
the connecting rod and piston assem-
blies.
Cylinder block
1
2
3
4
5
S6D55760
6
7
8
9
5-36