Yamaha WR450FN 2022, Owner'S Service Manual

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CAMSHAFT
5-19
c. Release the screwdriver, check that the
tensioner rod comes out smoothly, and
tighten the gasket “5” and the cap bolt “6”.
3. Turn:
•
Crankshaft
Counterclockwise several turns.
4. Check:
• Top dead center (TDC) mark on the genera-
tor rotor
Align with the crankcase alignment mark.
•
Camshaft match marks
Align with the cylinder head surface.
Out of alignment

Adjust.
5. Install:
•
Timing chain guide (top side) “1”
• Cylinder head cover gasket “2”
•
Gasket (spark plug hole) “3”
• Cylinder head cover “4”
•
Cylinder head cover bolt “5”
TIP
Before installation, apply the sealant to the cylin-
der head cover gasket.
6. Install:
• Cylinder head breather hose
•
Spark plug
Timing chain tensioner bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
Timing chain tensioner cap bolt
6 N·m (0.6 kgf·m, 4.4 lb·ft)
Cylinder head cover bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
T
R
.
.
2 2 2
4 4
a a
4 4
3 3
1 1
T
R
.
.
6 6
5 5
Ne w
Ne w
T
R
.
.
Yamaha bond No. 1215
90890-85505
Three bond No. 1215®
Spark plug
13 N·m (1.3 kgf·m, 9.6 lb·ft)
1
4
5
5
2
3
T
R
.
.