Tightening Torques; Engine - Yamaha XC50V Service Manual

TIGHTENING TORQUES

ENGINE

Part to be tightened
Cylinder head and cylinder
Spark plug
Cylinder head(timing chain side)
Exhaust pipe stud bolt
Cylinder head cover
Oil check bolt
Water pump housing cover
Water pump assembly
Guide stopper2
Thermostat housing air bleed bolt
Camshaft sprocket
Timing chain tensioner (body)
Timing chain tensioner (plug)
Thermostat housing
Fan case
Fan
Oil pump assembly
Radiator drain bolt
Manifold
Air filter assembly
Engine oil drain plug
Air cut-off valve
Muffler
Oil guide
Muffler
Protector
Crankcase(left and right)
Transmission cover
Drain bolt(transmission oil)
Cover1(starter clutch)
Crankcase cover(left)
Hold lead plate bolt
Drain bolt(engine oil)
Rear wheel lock nut
Drain bolt(transmission oil fill bolt)
AI filter
Rear wheel lock cover
Plate
Kickstarter
Starter clutch
TIGHTENING TORQUES
Thread
Part name
size
Nut M6
- M10
Bolt M6
- M8
Nut M6
- M6
Bolt M6
Bolt M6
Bolt M6
- M6
Bolt M8
Bolt M6
plug M8
Bolt M6
Bolt M6
Bolt M6
Bolt M5
- M12
Bolt M6
Bolt M6
- M35
Bolt M6
Bolt M8
Nult M6
Nut M8
Screw M6
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Bolt
M6
- M6
- M8
- M8
- M8
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Nut M22
2-16
SPEC
Tightening
Q ' ty
torque
Nm m•kg ft•lb
4 10 1.0 7.2
1 12.5 1.25 9.0
2 10 1.0 7.2
2 12.5 1.25 9.0
4 10 1.0 7.2
5.1
1 7 0.7
3 10 1.0 7.2
3 10 1.0 7.2
1 7 0.7 5.1
1 10 1.0 7.2
1 30 3.0 21.7
2 9 0.9 6.5
1 8 0.8 5.8
2 10 1.0 7.2
4 10 1.0 7.2
3 9 0.9 6.5
2 4 0.4 2.9
1 2 0.2 1.5
2 10 1.0 7.2
2 10 1.0 7.2
1 32 3.2 23.1
1 10 1.0 7.2
2 31 3.1 22.4
2 10 1.0 7.2
2 13 1.3 9.4
2 9 0.9 6.5
8 10 1.0 7.2
8 13 1.3 9.4
8 13 1.3 9.4
7 10 1.0 7.2
7.2
6 10 1.0
1 10 1.0 7.2
1 23 2.3 16.6
1 15 1.5 10.9
1 23 2.3 16.6
1 10 1.0 7.2
4 10 1.0 7.2
7 7 0.7 5.1
1 12 1.2 8.7
1 90 9.0 65.1
Remarks
4
Left-hand thread
Left-hand thread