Tightening Torques; Engine Tightening Torques - Yamaha YFM7FGPW Service Manual

EBS01005

TIGHTENING TORQUES

ENGINE TIGHTENING TORQUES

Item
Cylinder head (exhaust pipe)
Cylinder head
Cylinder head
Cylinder head
Spark plug
Oil gallery bolt
Cylinder
AC magneto rotor
Balancer driven gear
Thermostat cover
Cylinder head air bleed bolt
Valve adjusting screw
Decompression assembly
Timing chain guide (intake side)
Timing chain tensioner cap
Timing chain tensioner
Bearing retainer (camshaft)
Camshaft sprocket cover
Tappet cover
Camshaft sprocket
Crankcase
Engine oil drain bolt
Oil filter cartridge
Oil filter cartridge union bolt
Oil delivery pipe
Oil delivery pipe
Oil pump
Oil pump driven gear
Bearing retainer (crankcase)
Exhaust pipe protector
Muffler and frame
Muffler and muffler bracket
Exhaust pipe
Water pump housing
Coolant drain bolt
Water pump air bleed bolt
TIGHTENING TORQUES
Thread
Part name Q'ty
size
Stud bolt M8 4
Bolt M9 4
Bolt M9 2
Bolt M6 2
— M10 1
Union bolt M8 1
Bolt M10 4
Nut M16 1
Nut M18 1
Bolt M6 2
Bolt M6 1
Nut M6 4
Bolt M7 2
Bolt M6 2
Bolt M16 1
Bolt M6 2
Bolt M6 2
Bolt M6 2
Bolt M6 8
Bolt M7 2
Bolt M8 2
Bolt M6 4
Bolt M6 8
Bolt M14 1
— M20 1
Union bolt M20 1
Union bolt M14 2
Union bolt M10 1
Bolt M6 3
Nut M10 1
Bolt M6 2
Bolt M6 2
Bolt M8 1
Bolt M8 2
Nut M8 4
Bolt M6 2
Bolt M6 1
Bolt M6 1
2 - 16
SPEC
Tightening torque
Remarks
Nm m · kg ft · lb
15 1.5 11
35 3.5 25
38 3.8 27
10 1.0 7.2
13 1.3 9.4
10 1.0 7.2
See NOTE.
50 5.0 36
70 7.0 50
Use a lock
80 8.0 58
washer.
10 1.0 7.2
10 1.0 7.2
14 1.4 10
20 2.0 14
10 1.0 7.2
20 2.0 14
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
20 2.0 14
26 2.6 19
10 1.0 7.2
10 1.0 7.2
30 3.0 22
17 1.7 12
68 6.8 49
35 3.5 25
20 2.0 14
10 1.0 7.2
Use a lock
22 2.2 16
washer.
10 1.0 7.2
7 0.7 5.1
20 2.0 14
20 2.0 14
20 2.0 14
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
M
E
E
LT
LT
E
LT