Yamaha YZ250F(W) Owner's Service Manual page 320

CAMSHAFTS
6. Install:
• Timing chain guide (top side) 1
• Cylinder head cover gasket 2
• Cylinder head cover 3
• Bolt (cylinder head cover) 4
NOTE:
Apply the sealant on the cylinder head cover
gasket.
YAMAHA Bond No. 1215
(ThreeBond
90890-85505
7. Install:
• Cylinder head breather hose
• Spark plug
4 - 30
ENG
10 Nm (1.0 m · kg, 7.2 ft · lb)
®
No. 1215):
13 Nm (1.3 m · kg, 9.4 ft · lb)