Yamaha YZ 2023 Series, Owner'S Service Manual, Page: 56 / 378

TIGHTENING TORQUES
2-11
Clutch cable locknut (engine side) M8 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Exhaust pipe nut M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Exhaust pipe protector screw M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Exhaust pipe bracket bolt M8 1 20 N·m (2.0 kgf·m, 15 lb·ft)
Silencer bolt (front) M8 1 30 N·m (3.0 kgf·m, 22 lb·ft)
Silencer bolt (rear) M8 1 30 N·m (3.0 kgf·m, 22 lb·ft)
Exhaust pipe clamp bolt M8 2 12 N·m (1.2 kgf·m, 8.9 lb·ft)
Silencer body bolt M5 6 8 N·m (0.8 kgf·m, 5.9 lb·ft)
Oil nozzle bolt M5 1 5 N·m (0.5 kgf·m, 3.7 lb·ft)
Engine oil drain bolt M10 1 20 N·m (2.0 kgf·m, 15 lb·ft)
Crankcase bolt M6 12 12 N·m (1.2 kgf·m, 8.9 lb·ft)
Clutch cable holder bolt M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Crankshaft end accessing screw M36 1 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Timing mark accessing screw M14 1 6 N·m (0.6 kgf·m, 4.4 lb·ft)
Drive sprocket cover bolt M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Crankcase bearing cover plate
screw
M8 4 22 N·m (2.2 kgf·m, 16 lb·ft)
Bearing plate cover bolt (left side of
the drive axle)
M6 2 12 N·m (1.2 kgf·m, 8.9 lb·ft)
Plate bolt M6 4 12 N·m (1.2 kgf·m, 8.9 lb·ft)
Clutch cover bolt M6 6 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Crankcase cover bolt (left) M6 7 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Crankcase cover bolt (right) M6 9 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Oil filter element cover bolt M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Starter clutch screw M6 8 12 N·m (1.2 kgf·m, 8.9 lb·ft)
Primary drive gear nut M16 1 105 N·m (10.5 kgf·m, 77 lb·ft)
Clutch spring bolt M6 6 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Clutch boss nut M20 1 95 N·m (9.5 kgf·m, 70 lb·ft)
Stake.
Drive sprocket nut M18 1 75 N·m (7.5 kgf·m, 55 lb·ft)
Use a lock
washer.
Segment bolt M8 1 30 N·m (3.0 kgf·m, 22 lb·ft)
Shift guide bolt M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Stopper lever bolt M6 1 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Shift pedal bolt M6 1 12 N·m (1.2 kgf·m, 8.9 lb·ft) 
Generator rotor nut M12 1 65 N·m (6.5 kgf·m, 48 lb·ft)
Stator coil screw M5 3 10 N·m (1.0 kgf·m, 7.4 lb·ft)
Item
Thread
size
Q’ty Tightening torques Remarks
LT
LT
LT
LT
E
E
LT
LT
LT
LT
LT
E
LT
LT
LT