Tightening Torques; Engine Tightening Torques - Yamaha MIO Service Manual

TIGHTENING TORQUES

ENGINE TIGHTENING TORQUES

Part to be tightened
Spark plug
Cylinder head
Cylinder head (timing chain side)
Cylinder head stud bolt
Oil gallery bolt
Tappet cover (intake and exhaust
side)
Camshaft sprocket cover
Camshaft retainer
Camshaft sprocket cover breather
plate
Camshaft sprocket
Valve adjusting locknut
Timing chain guide (intake side)
Timing chain tensioner
Engine cooling fan cover
Engine cooling fan
A.C. magneto rotor
Oil pump cover
Oil pump assembly
Engine oil drain plug
Engine oil drain bolt
Transmission oil drain bolt
Muffler and cylinder head
Muffler and muffler stay (lower bolt)
Muffler and muffler stay (upper bolt)
Muffler stay and right crankcase
Muffler protector
Intake manifold
Air filter case
Kickstarter crank
V-belt case cover protector 1
V-belt case cover protector 1
V-belt case air duct
V-belt case cover
V-belt case cover protector 2
Kickstarter shaft plate
Secondary sheave nut
Clutch carrier nut
Transmission case cover
Bearing retainer (primary drive gear)
TIGHTENING TORQUES
Thread
Part name Q'ty
size
— M10
Nut M8
Bolt M6
Bolt M8
Bolt M6
— M45
Bolt M6
Bolt M6
Bolt M6
Bolt M8
Nut M5
Bolt M6
Bolt M6
Screw M6
Bolt M6
Nut M12
Bolt M6
Screw M5
Plug M30
Bolt M12
Bolt M8
Nut M8
Bolt M8
Bolt M10
Bolt M8
Screw M6
Bolt M6
Bolt M6
Bolt M6
Screw M6
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Screw M6
Nut M10
Nut M27
Bolt M6
Bolt M6
2 - 16
SPEC
Tightening torque
Nm m · kg ft · lb
1 15 1.5 11
4 22 2.2 16
2 10 1.0 7.2
2 13 1.3 9.4
1 7 0.7 5.1
2 18 1.8 13
2 12 1.2 8.7
1 12 1.2 8.7
2 10 1.0 7.2
1 30 3.0 22
2 7 0.7 5.1
1 7 0.7 5.1
2 9 0.9 6.5
2 7 0.7 5.1
3 8 0.8 5.8
1 70 7.0 50
3 10 1.0 7.2
2 4 0.4 2.9
1 20 2.0 14
1 20 2.0 14
1 22 2.2 16
2 20 2.0 14
1 35 3.5 25
1 50 5.0 36
2 37 3.7 27
2 8 0.8 5.8
2 10 1.0 7.2
3 7 0.7 5.1
1 12 1.2 8.7
2 7 0.7 5.1
1 10 1.0 7.2
1 10 1.0 7.2
13 10 1.0 7.2
4 10 1.0 7.2
6 9 0.9 6.5
1 40 4.0 29
1 55 5.5 40
6 13 1.3 9.4
1 10 1.0 7.2
Remarks
E
LT
LT