Yamaha XVS6501997 - Page 31

2-11
MAINTENANCE SPECIFICATIONS
SPEC
Tightening torques
Part to be tightened
Part name
Thread
size
Q’ty
Tightening
torque
Remarks
g
size
y
Nm mSkg
Cylinder head
Cylinder head
Cylinder head
Cylinder head cover bracket
Cylinder head (exhaust pipe)
Camshaft sprocket cover
Tappet cover
Rocker arm shaft (oil passage)
Bearing retainer (camshaft)
Spark plug
Cylinder
Lower cylinder head cover
Upper cylinder head cover
Connecting rod
Rotor
Valve adjusting locknut
Camshaft sprocket
Timing chain tensioner
Timing chain guide
Oil pump
Oil strainer cover
Oil filter cover
Carburetor joint
Air filter case stay
Air filter case assembly
Exhaust pipe joint (rear) and
cylinder head
Exhaust pipe joint (rear) and
muffler assembly (rear)
Exhaust pipe (front)
Exhaust pipe and muffler
Muffler
Crankcase (cylinder)
Crankcase (cylinder)
Crankcase
Crankcase
Bearing retainer (middle drive
pinion gear)
Crankcase cover (left)
Crankcase cover (right)
Clamp
One-way clutch
Primary drive gear
Nut
Nut
Bolt
Nut
Stud bolt
Bolt
Bolt
Bolt
Bolt
—
Bolt
Bolt
Screw
Nut
Bolt
Nut
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Bolt
Nut
Bolt
Nut
Screw
Bolt
Stud bolt
Stud bolt
Bolt
Bolt
Torx screw
Bolt
Bolt
Bolt
Bolt
Nut
M10
M8
M8
M10
M8
M6
M6
M16
M8
M12
M6
M6
M6
M8
M10
M6
M10
M6
M6
M6
M6
M6
M6
M6
M6
M8
M8
M8
M8
M10
M10
M8
M8
M6
M8
M6
M6
M6
M8
M10
8
2
4
8
4
4
8
4
4
2
2
6
8
4
1
4
2
4
4
3
3
5
4
2
2
2
2
2
2
2
8
2
4
10
4
13
11
1
6
1
35
20
20
35
15
10
10
38
20
18
10
10
5
36
80
14
55
12
10
7
10
10
12
12
12
20
20
25
20
25
20
13
24
10
25
10
10
10
20
70
3.5
2.0
2.0
3.5
1.5
1.0
1.0
3.8
2.0
1.8
1.0
1.0
0.5
3.6
8.0
1.4
5.5
1.2
1.0
0.7
1.0
1.0
1.2
1.2
1.2
2.0
2.0
2.5
2.0
2.5
2.0
1.3
2.4
1.0
2.5
1.0
1.0
1.0
2.0
7.0
Use lock washer
Stake
Use lock washer