Cylinder Head - Yamaha YFM250RX 2008 Service Manual

CYLINDER HEAD

60 Nm (6.0 m•kg, 44 ft•lb)
10 Nm (1.0 m•kg, 7.4 ft•lb)
20 Nm (2.0 m•kg, 15 ft•lb)
Order Job/Parts to remove
Removing the cylinder head
Seat/front fender/fuel tank/fuel tank
shield
Muffler and exhaust pipe
Carburetor
Ignition coil spark plug lead
Engine bracket (upper side)
1 Spark plug
2 Cylinder head cover 1/O-ring
3 Cylinder head cover 2/O-ring
4 Cylinder head cover 3/O-ring
5 Breather pipe 1/Gasket
6 Crankshaft end accessing screw/
O-ring
7 Timing mark accessing screw/O-ring
8 Camshaft sprocket bolt
CYLINDER HEAD
10 Nm (1.0 m•kg, 7.4 ft•lb)
18 Nm (1.8 m•kg, 13 ft•lb)
24 Nm (2.4 m•kg, 18 ft•lb)
18 Nm (1.8 m•kg, 13 ft•lb)
10 Nm (1.0 m•kg, 7.4 ft•lb)
Q'ty
Refer to "SEAT, FENDERS AND FUEL
TANK" in chapter 3.
Refer to "MUFFLER AND EXHAUST
PIPE".
Refer to "CARBURETOR" in chapter 5.
Refer to "LEADS, CABLES AND HOSES".
Refer to "ENGINE MOUNTING BOLTS".
1
1/1
1/1
1/1
1/1
1/1
1/1
1 Loosen.
4-7
ENG
Remarks