Yamaha WR250F 2023 Owner's Manual page 50

EAM30203
ENGINE TIGHTENING TORQUES
TIP
- marked portion shall be checked for torque tightening after break-in or before each race.
Item
Camshaft cap bolt
Spark plug
Cylinder head stud bolt (exhaust
pipe)
Oil passage plug (cylinder head)
Cylinder head bolt
Cylinder head nut
Cylinder head cover bolt
Stud bolt (cylinder head cover)
Cylinder bolt
Oil pressure check bolt
Balancer weight plate screw
Balancer weight gear nut
Balancer nut
Timing chain guide stopper plate
(exhaust side)
Timing chain tensioner cap bolt
Timing chain tensioner bolt
Coolant drain bolt
Radiator hose clamp screw
Radiator bolt
Radiator pipe joint bolt
Radiator fan bolt
Water pump housing cover bolt
Water pump impeller
Oil pump assembly bolt
Oil pump cover bolt
Oil strainer bolt
Throttle cable cover bolt
Throttle body joint bolt
Throttle body joint clamp screw
Air filter case joint clamp screw
Air filter case bolt
Thread
Q'ty
size
M6 8
M10 1
M6 2
M6 1
M9 4
M6 2
M6 2
M6 1
M6 1
M6 1
M6 2
M14 1
M10 1
M6 1
M6 1
M6 2
M6 1
M6 8 1.5 N·m (0.15 kgf·m, 1.1 lb·ft)
M6 4
M6 1
M6 3
M6 4
M8 1
M5 2
M4 1
M6 1
M5 1 3.5 N·m (0.35 kgf·m, 2.6 lb·ft)
M6 2
M5 1 3.0 N·m (0.30 kgf·m, 2.2 lb·ft)
M5 1 3.0 N·m (0.30 kgf·m, 2.2 lb·ft)
M6 3
2-9
TIGHTENING TORQUES
Tightening torques
10 N·m (1.0 kgf·m, 7.4 lb·ft)
13 N·m (1.3 kgf·m, 9.6 lb·ft)
7 N·m (0.7 kgf·m, 5.2 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
See TIP.
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
50 N·m (5.0 kgf·m, 37 lb·ft)
38 N·m (3.8 kgf·m, 28 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
6 N·m (0.6 kgf·m, 4.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
8 N·m (0.8 kgf·m, 5.9 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
14 N·m (1.4 kgf·m, 10 lb·ft)
5 N·m (0.5 kgf·m, 3.7 lb·ft)
6 N·m (0.6 kgf·m, 4.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
10 N·m (1.0 kgf·m, 7.4 lb·ft)
7 N·m (0.7 kgf·m, 5.2 lb·ft)
Remarks
E
M
LT
LT
E
LT
LT
LT