LONCIN YF300 User Manual

5
Data of standard torque
Ref.No.
Parts name
Specification
Torque N·m
1
Spark plug
M10
15～20
2
Bolt on cylinder head cover
M6
8～12
3
Bolt for bracket of camshaft
M6
10～15
4
Fastening bolt of cylinder
body
M6
10～15
5
Fastening bolt for cylinder
head
M10
40～50
（Pre-fastening）
50～60
（Final-fastening）
6
Locking bolt for timing
driven sprocket wheel
M6
10～15
7
Fastening bolt of tensioner
M6
10～15
8
Bolt for oil tube
M8
10～15
9
Fastening nut of primary
driving gear
M12
90～100
10
Fastening nut of clutch
M12
70～80
11
Locking nut of impeller
M6
10～15
12
Controller valve comp. of
oil
M12
10～15
13
Fastening bolt of guiding
plate of ratchet
M6
8～12
14
Fastening bolt of rotor of
magnetor
M12
100～120
15
Fastening bolt of gearshift
drum plate
M6
10～15
16
Bolt of check plate
M6
10～15
17
Positioning bolt of gearshift
arm
M10
25～30
18
Oil drainage plug
M12
32～40
19
Pin axis of chain adjustor
M8
25～30
Except the key torque data in table above, others follow the table below：
Ref.No.
Parts name and
specification
Torque N·m
1
5mm Bolt and nut
5～7
2
6mm Bolt and nut
10～15
3
8mm Bolt and nut
15～20
4
10mm Bolt and nut
25～35
5
12mm Bolt and nut
30～40
6
5mm Screw
3.5～5
7
6mm Screw
8～12

LONCIN YF300 Specifications

General

Brand	LONCIN
Model	YF300
Category	Engine
Language	English