Yamaha SR400 2014, Service Manual

Page: 184 / 342

CYLINDER HEAD
5-10
3. Tighten:
• Cylinder head nut
•
Cylinder head bolt
TIP
• Lubricate the cylinder head nuts with engine
oil.
• Tighten the cylinder head bolts and nuts in two
stages.
4. Install:
• Camshaft “1”
5. Align:
•
“T” mark “a” on the AC magneto
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the AC magneto counterclockwise.
b. Align the AC magneto “T” mark “a” with the
mark “b” on the crankcase.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
6. Install:
•
Timing chain “1”
• Camshaft sprocket “2”
TIP
•
Align the camshaft with the dowel pin hole “a”
on the camshaft sprocket.
•
Install the timing chain so that the punch mark
“b” on the camshaft sprocket is flush with the
end surface of the cylinder head and the dowel
pin is perpendicular to the end surface of the
cylinder head.
7. Install:
•
Plate “1”
• Camshaft sprocket bolt “2”
TIP
Temporarily tighten the camshaft sprocket bolt.
8. Install:
•
Timing chain tensioner assembly “1”
Cylinder head nut
38 Nm (3.8 m·kgf, 27 ft·lbf)
Cylinder head bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
T
R
.
.
T
R
.
.
1
a
b
1
2
a
b
1 2