Yamaha VMX12H Supplementary Service Manual page 184

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ENGINE ASSEMBLY AND ADJUSTMENT
5.
Install:
*Piston
Piston pin
pin clip
NOTE:
sure the piston i s positioned correctly as
shown.
*Always install new piston pin clips.
Plane bearings (connecting rods)
Onto the connecting rod and cap.
Mark
"EX" Exhaust side
"IN" Intake side
Projection
6. Install :
Into the upper crankcase.
By the following steps.
rod assembly installation
steps:
the Piston Ring Compressor
8037) to the piston.
Install the piston t o the cylinder.
NOTE:
stamped mark
No. 4 connecting rods should face towards
the RIGHT side of the crankcase.
stamped mark
No. 3
connecting rods should face towards
the LEFT side of the crankcase.
Front
facing direction
Piston exhaust mark
Piston intake mark
rod assembly (#1
on the No. 2
and
on the No. 1 and
3-60