Yingang YG48Q-5A, Maintenance Manual

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YG48Q-5AMaintenanceManualOverview
8
Standard Torque Values
ENGINE
Item Quantity
Thread diameter
(mm)
Torque value (N.m) Thread locker
Cylinder head cover connecting bolt 13 8 8
～
12
Cylinder bolt
4 10 40
～
50
2 6 8
～
12
Valve adjusting screw nut 4 10 8
～
12
Timing driven sprocket bolt 2 7 7
～
11
Rocker-arm shaft cover 2 14 24
～
28
Magneto flywheel fastening nut 1 12 38
～
45 LOCTITE 243
Clutch fastening nut 1 18 114
～
126 LOCTITE 243
Primary driving gear fastening nut 1 18 143
～
157 LOCTITE 243
Oil drain plug 1 12 28
～
32
Crankshaft, main-shaft bearing baffle screw 5 6
8
～
12
LOCTITE 648
Stud 1 6
8
～
12
Stud 4 10 40
～
50
Exhaust valve stud bolt 2 8 10
～
14 LOCTITE 243
Stator connecting bolt 3 6 8
～
12 LOCTITE 648
Stator leads pressure plate bolt 2 6 8
～
12 LOCTITE 648
Spark Plug 1 12 18
～
25
Pensioner plate fastening bolt 1 6 7
～
10
Vehicle body
Item Quantity
Thread diameter
(mm)
Torque value (N.m) Thread locker
Front wheel spindle 1 14 50
～
60
Front vibration damper plate 1 10 30
～
40
Real wheel spindle nut 1 16 60
～
90
Rear fork shaft nut 1 14 50
～
60
Engine hanging bolt
3 10 30
～
40
4 8 20
～
30
Steering handle set bolt 4 8 20
～
30
Front fork vertical pipe cap nut 1 22 60
～
90
Lower connection plate set bolt 2 10 30
～
40
Upper connection plate set bolt 2 6 8
～
12
Rear sprocket nut 6 8 20
～
30 LOCTITE 243
Brake disc fastening nut 8 8 20
～
30 LOCTITE 243
Speed signal panel screw 4 8 20
～
30 LOCTITE 243
Front brake caliper screw 2 8 20
～
30 LOCTITE 243
In addition to the torque values of the important parts as listed above, the torque values for other standard
fasteners are as follow: