Connecting Rod; Cylinder Head Cover - Yamaha F150A Service Manual

Connecting rod

A direction mark for installing the connecting rod to the crankshaft in the proper direction is on the
connecting rod cap.
The direction mark should face the flywheel.
The connecting rod and connecting rod cap are manufactured as a single piece. Then, they are split
using impact force. Only use the connecting rods and connecting rod caps in their original combina-
tions, do not interchange them.
1 Direction mark

Cylinder head cover

The oil/gas separator is used to obtain low emissions and is built into the cylinder head cover to
obtain a compact design.
The gas and oil flow is shown below.
1 Intake silencer
2 Cylinder head cover (with gas/oil separator)
È Blowby gas
É Oil
63P3F11
2
Features and benefits
1
1
È
:
É
:
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2
3
S63P1100
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S63P1110
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