Yamaha YZF-R25 Service Manual page 240

Removing the cylinder head
17 Nm (1.7 m kgf, 12 ft
•
1
2
7
New
7
8
4
13
10 Nm (1.0 m kgf, 7.2 ft
•
68 Nm (6.8 m kgf, 49 ft
•
18
17
New
* Following the tightening order, loosen the bolt one by one, and then retighten it to the specific torque.
Order
15 Cylinder head
16 Plate
17 Cylinder head gasket
18 Dowel pin
19 Timing chain guide (exhaust side)
10 Nm (1.0 m kgf, 7.2 ft
• •
(6)
Ibf)
•
16
Ibf)
•
18
Ibf)
•
9
68 Nm (6.8 m
Job/Parts to remove
Ibf)
5
M
5
3
6
16
15
New
14
11
12
kgf, 49 ft Ibf)
• •
Q'ty
1
2
1
2
1
5-23
CYLINDER HEAD
10 Nm (1.0 m kgf, 7.2 ft
1st
•
2nd 30 Nm (3.0 m kgf, 22 ft
•
12 Nm (1.2 m kgf, 8.7 ft
*3rd
•
Specified angle 115–125˚
68 Nm (6.8 m kgf, 49 ft Ibf)
• •
10 Nm (1.0 m kgf, 7.2 ft
•
15 Nm (1.5 m kgf, 11 ft
•
19
12
68 Nm (6.8 m kgf, 49 ft
•
Remarks
Ibf)
•
Ibf)
•
Ibf)
•
Ibf)
•
Ibf)
•
9
10
Ibf)
•