Yamaha XV250 (1994) [162/291] Engine assembly and adjustment

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ENGINE ASSEMBLY AND ADJUSTMENT ENG 2 Apply 4 stroke engine oil To the piston pin bearing piston ring grooves and piston skirt areas 3 Install Gasket New Dowel pins O rings 4 Offset the piston ring end gaps as shown NOTE ______________________________ Be sure to check the manufacturer s marks or numbers stamped on the rings are on the top side of the rings Before installing the cylinder apply a liberal coating of 4 stroke engine oil to the piston rings Top ring Oil ring Lower rail 2nd ring Oil ring Upper rail 5 Install Cylinder NOTE __________________________________ Install the cylinder with one hand while com pressing the piston rings with the other hand Tie the cam chain with a piece of mechanics wire and feed it through the chain opening 4 52