Yamaha WR250F Manuel D'atelier page 362

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CYLINDER AND PISTON
4 - 48
3. Install:
Cylinder gasket 1
Cylinder 2
NOTE:
Install the cylinder with one hand while com-
pressing the piston rings with the other hand.
CAUTION:
Pass the timing chain 3 through the tim-
ing chain cavity.
Be careful not to damage the timing chain
guide 4 during installation.
4. Install:
Bolt (cylinder) 5
10 Nm (1.0 m · kg, 7.2 ft · lb)
ENG