SPEC
2 - 16
NOTE:
- marked portion shall be checked for torque tightening after break-in or before each race.
Part to be tightened
Thread size
Q’ty
Tightening torque
Nm
m·kg
ft·lb
Rear wheel axle and nut
M20
×
1.5
1
125
12.5
90
Driven sprocket and wheel hub
M8
×
1.25
6
42
4.2
30
Nipple (spoke)
—
72
3
0.3
2.2
Disc cover and rear brake caliper
M6
×
1.0
2
10
1.0
7.2
Protector and rear brake caliper
M6
×
1.0
2
7
0.7
5.1
Chain puller adjust bolt and locknut
M8
×
1.25
2
16
1.6
11
Engine mounting:
Engine upper bracket and frame
M10
×
1.25
4
55
5.5
40
Engine lower bracket and frame
M8
×
1.25
4
34
3.4
24
Engine and engine bracket (front)
M10
×
1.25
1
53
5.3
38
Engine and engine bracket (upper)
M10
×
1.25
1
55
5.5
40
Engine and frame (lower)
M10
×
1.25
1
53
5.3
38
Engine guard
M6
×
1.0
1
10
1.0
7.2
Engine skid plate mounting
M6
×
1.0
3
10
1.0
7.2
CDI unit bracket mounting
M6
×
1.0
2
7
0.7
5.1
Cable guide and CDI unit bracket
M5
×
0.8
2
4
0.4
2.9
Cable guide and frame
M5
×
0.8
1
5
0.5
3.6
Pivot shaft and nut
M16
×
1.5
1
85
8.5
61
Relay arm and swingarm
M14
×
1.5
1
70
7.0
50
Relay arm and connecting rod
M14
×
1.5
1
80
8.0
58
Connecting rod and frame
M14
×
1.5
1
80
8.0
58
Rear shock absorber and frame
M10
×
1.25
1
56
5.6
40
Rear shock absorber and relay arm
M10
×
1.25
1
53
5.3
38
Rear frame and frame (upper)
M8
×
1.25
1
32
3.2
23
Rear frame and frame (lower)
M8
×
1.25
2
32
3.2
23
Swingarm and brake hose holder
M5
×
0.8
4
2
0.2
1.4
Swingarm and patch
M4
×
0.7
4
2
0.2
1.4
Drive chain tensioner mounting (upper)
M8
×
1.25
1
16
1.6
11
Drive chain tensioner mounting (lower)
M8
×
1.25
1
16
1.6
11
Chain support and swingarm
M6
×
1.0
3
7
0.7
5.1
Seal guard and swingarm
M5
×
0.8
4
6
0.6
4.3
Fuel tank mounting boss and frame
M10
×
1.25
1
20
2.0
14
Fuel tank mounting
M6
×
1.0
2
10
1.0
7.2
Fuel tank and fuel cock
M6
×
1.0
2
6
0.6
4.3
Fuel tank and seat set bracket
M6
×
1.0
1
7
0.7
5.1
Fuel tank and fuel tank bracket
M6
×
1.0
4
7
0.7
5.1
Seat mounting
M8
×
1.25
2
23
2.3
17
Side cover mounting
M6
×
1.0
2
7
0.7
5.1
Air scoop and fuel tank
M6
×
1.0
6
7
0.7
5.1
Air scoop and radiator panel (lower)
M6
×
1.0
2
7
0.7
5.1
Front fender mounting
M6
×
1.0
4
7
0.7
5.1
Rear fender mounting (front)
M6
×
1.0
2
7
0.7
5.1
Rear fender mounting (rear)
M6
×
1.0
2
16
1.6
11
Number plate
M6
×
1.0
1
7
0.7
5.1
MAINTENANCE SPECIFICATIONS
Summary of Contents for YZ450F
Page 47: ...GEN INFO MEMO ...
Page 67: ...GEN INFO MEMO ...
Page 193: ...INSP ADJ MEMO ...
Page 593: ... ELEC MEMO ...
Page 623: ...TUN MEMO ...
Page 648: ......
Page 649: ......