Checking The Camshaft Sprocket; Installing The Cylinder Head - Yamaha YBR125ED 2005 Service Manual

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6
4
2
2
3
5 1
1
a
CYLINDER HEAD

CHECKING THE CAMSHAFT SPROCKET

1. Check:
• camshaft sprocket
Wear/damage → Replace the camshaft
sprocket and timing chain as a set.
a 1/4 of a tooth
b Correct
1 Roller
2 Sprocket
EAS00231

INSTALLING THE CYLINDER HEAD

1. Install:
• cylinder head gasket
• dowel pins
2. Install:
• cylinder head
• washers
• cylinder head bolts
NOTE:
• Apply sealant to the threads of the cylinder
head bolts (M6).
• Lubricate the contact surfaces of the cylinder
head bolts and on both contact surfaces of
washers with engine oil.
3. Tighten:
• cylinder head bolts 1
• cylinder head bolts 2
1
NOTE:
_
Tighten the cylinder head bolts in the proper
tightening sequence as shown and torque
them in two stages.
4. Fill:
• cylinder head
Engine oil (5 ml or more) into the space a.
NOTE:
Be sure to add engine oil every time the cylin-
der head is removed.
5 - 12
ENG
New
New
22 Nm (2.2 m · kg, 16 ft · lb)
10 Nm (1.0 m · kg, 7.2 ft · lb)