Cylinder Head - Yamaha TTR250L Service Manual

ENGINE ASSEMBLY AND ADJUSTMENT

CYLINDER HEAD

1.Install:
Cylinder head 1
Bolts 1 ~ 4 (cylinder head):
40 Nm (4.0 m • kg, 29 ft • lb)
Nuts 5, 6 (cylinder head):
20 Nm (2.0 m • kg, 14 ft • lb)
Bolts 7, 8 (cylinder head):
10 Nm (1.0 m • kg, 7.2 ft • lb)
NOTE:
Apply engine oil onto the nut threads.
Tighten the nuts in a crisscross pattern.
2.Install:
Exhaust camshaft 1
Intake camshaft 2
Dowel pins 3
3.Install:
Camshaft caps 1 (intake camshaft)
Camshaft caps 2 (exhaust camshaft)
NOTE:
Install the camshaft cap with the arrow
mark embossed facing right side of the
engine.
4.Tighten:
Bolts (camshaft caps)
Bolt (camshaft caps):
10 Nm (1.0 m • kg, 7.2 ft • lb)
NOTE:
Tighten the bolts (camshaft caps) in a criss-
cross pattern from inner most to outer caps.
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ENG