2008 Yamaha WaveRunner FX SHO / FX Cruiser SHO Service Manual, Page 204Get this manual
Cylinder head
E 4Lightly tap the upper spring seat with plastic hammer to set the valve cotters securely
Cylinder head installation
1Install: Cylinder head
CAUTION:
Do not reuse the cylinder head bolts and the cylinder head gasket, always replace them with new ones