Cylinder Head, Cylinder And Piston; Removing The Cylinder Head And Cylinder - Yamaha yz250 2015 Owner's Manual

CYLINDER HEAD, CYLINDER AND PISTON

REMOVING THE CYLINDER HEAD AND CYLINDER

34 Nm (3.4 m kg, 24 ft lb)
64 Nm (6.4 m kg, 46 ft lb)
5 Nm (0.5 m kg, 3.6 ft lb)
5 Nm (0.5 m kg, 3.6 ft lb)
Order
Seat and fuel tank
Exhaust pipe and silencer
Radiator hose 1
Carburetor
1 Spark plug
2 Engine bracket
3 Nut (cylinder head)
4 Cylinder head
5 Power valve housing
6 Push rod
7 Nut (cylinder)
8 Cylinder
CYLINDER HEAD, CYLINDER AND PISTON
20 Nm (2.0 m kg, 14 ft lb)
Part name Q'ty
Refer to "SEAT, FUEL TANK AND SIDE
COVERS" section.
Refer to "EXHAUST PIPE AND SILENCER"
section.
Disconnect at cylinder head side.
Refer to "CARBURETOR AND REED
VALVE" section.
1
2
Loosen each nut 1/4 turn, and remove them
6
after all nuts are loosened.
1
1
1 Refer to removal section.
4
1
4-13
25 Nm (2.5 m kg, 18 ft lb)
13 Nm (1.3 m kg, 9.4 ft lb)
42 Nm (4.2 m kg, 30 ft lb)
13 Nm (1.3 m kg, 9.4 ft lb)
Remarks