Yamaha YZ450F Fahrer- Und Wartungshandbuch Seite 298

• With the rod fully wound and the chain ten-
sioner UP mark a facing upward, install
the gasket 1, the chain tensioner 2 and
the gasket 3, and tighten the bolt 4 to the
specified torque.
• Release the screwdriver, check the ten-
sioner rod to come out and tighten the
gasket 5 and the cap bolt 6 to the speci-
fied torque.
5
New
6
3. Turn:
• Crankshaft
4. Check:
• Rotor "I" mark
• Camshaft match marks
4 - 29
CAMSHAFTS
Bolt (timing chain tensioner):
10 Nm (1.0 m • kg, 7.2 ft • lb)
Tensioner cap bolt:
7 Nm (0.7 m • kg, 5.1 ft • lb)
Counterclockwise several turns
Align with the crankcase stationary
pointer.
Align with the cylinder head surface.
Out of alignment → Adjust.
ENG