Disassembling The Cylinder Block; Checking The Piston Diameter - Yamaha F200C Service Manual

POWR

Disassembling the cylinder block

1. Remove the cooling water passage
cover bolts in the sequence shown.
2. Remove the crankcase cover bolts in the
sequence shown.
NOTE:
Do not remove the ignition timing pointer
from the crankcase cover.
3. Remove the baffle plate.
4. Remove the connecting rod bolts and the
connecting rod caps, and then remove
the connecting rod and piston assem-
blies.
5. Remove the clips 1 with pliers, and then
remove the piston.
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Power unit
NOTE:
• Be sure to keep the bearings in the order as
they were removed, and to note the bearing
color.
• Mark each piston with an identification
number a of the corresponding cylinder.
Also, mark each connecting rod and con-
necting rod cap on the up side (flywheel
side) with an identification mark b.
• Do not mix the connecting rods and caps.
Keep them organized in their proper
groups.
6. Remove the crankcase bolts in the
sequence shown.
7. Remove the oil pump, then the crank-
shaft.

Checking the piston diameter

1. Measure the piston outside diameter at
the specified measuring point. Replace if
out of specification.
69J1D11