Tightening Torques; Engine Tightening Torques - Yamaha YJ125S Service Manual

ENGINE TIGHTENING TORQUES

Part to be tightened
Cylinder head and cylinder
Spark plug
Cylinder head(timing chain side)
Mainfold stud bolt
Exhaust pipe stud bolt
Breather assembly
Stopper plate
Guide stopper2
Valve clearance adjusting screw lock nut
Camshaft sprocket
Timing chain tensioner (body)
Timing chain tensioner (plug)
Air shroud 1and 2
Air shroud 1
Air shroud 1
Fan
Oil pump assembly
Cover element
Cover element inside drain bolt
Delivery pipe
Delivery pipe
Engine oil drain
Mainfold
Air filter assembly
Air filter case and air filter cap
Element cap
Carburetor overflow drain plug
Muffler
Muffler
Protector
Air induction system assembly
AI bracket and muffler
AI pipe
AI pipe clamp
AI filter
Crankcase 1and 2
Crankcase cover1
Crankcase cover2
Cover1(magneto)
Drain bolt(transmission oil)

TIGHTENING TORQUES

Thread
Part name
size
Nut M8
_ M10
Bolt M6
_ M6
_ M6
Bolt
M6
Bolt M6
Bolt M6
_ M5
Bolt M8
Bolt M6
plug M8
Screw
Screw M6
Bolt M6
Screw M6
Screw M6
Bolt M6
_ M6
Union bolt M8
Bolt M6
plug M35
Nut M6
Screw M6
Screw M6
Screw M6
plug M6
Nut M6
Bolt M8
Screw M6
Screw M5
Screw M5
Bolt M6
Hose clamp
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Screw M6
Bolt M8
2-19
SPEC
Tightening
Q ' ty
torque
Nm m•kgf ft•lb
4 22 2.2 15.9
1 12.5 1.25 9
2 12 1.2 8.7
2 7 0.7 5.1
2 7 0.7 5.1
5.1
2 7 0.7
1 7 0.7 5.1
1 7 0.7 5.1
2 7 0.7 5.1
1 30 3.0 21.7
2 10 1.0 7.2
1 8 0.8 5.8
5 1.5 0.15 1.1
2 7 0.7 5.1
1 8 0.8 5.8
3 7 0.7 5.1
2 7 0.7 5.1
2 8 0.8 5.8
1 7 0.7 5.1
1 10 7.2
1.0
1 8 0.8 5.8
1 32 3.2 23.1
2 7 0.7 5.1
2 7 0.7 5.1
5 7 0.7 5.1
1 7 0.7 5.1
1 2 0.2 1.4
2 10 1.0 7.2
2 31 3.1 22.4
2 7 0.7 5.1
2.9
4 4 0.4
4 4 0.4 2.9
1 8 0.8 5.8
1 4.5 0.45 3.3
2 1.5 0.15 1.1
8 12 1.2 8.7
10 10 1.0 7.2
5 12 1.2 8.7
3 7 0.7 5.1
1 23 2.3 16.6
Remarks
4
And AI pipe tighten
And air shroud tighten