Echo SRM-2305SI User Manual
Page 4
SERVICE INFORMATION
SRM-2305
SRM-2305SI
4
1-3 Torque limits
Descriptions
Size
kgf•cm
N•m
in•lbf
Starter
Pawl carrier
M 8
160 - 200
16 - 18
140 - 175
system Starter case
M 5
*
20 - 40
2 - 4
17 - 35
Ignition Ignition coil
M 4
30 - 50
3 - 5
26 - 45
system Fan cover
M 4
14 - 28
1.4 - 2.8
12 - 24
Spark plug
M 14
150 - 170
15 - 17
130 - 150
Fuel
Carburettor insulator
M 5**
25 - 40
2.5 - 4.0
22 - 35
system Carburettor
M 5
30 - 40
3 - 4
26 - 35
Throttle cable nut
M 6
25 - 35
2.5 - 3.5
22 - 30
Fuel tank
M 5**
30 - 45
3.0 - 4.5
26 - 40
Stand
M 4**
14 - 28
1.4 - 2.8
12 - 24
Clutch
Clutch hub
M 8
160 - 200
16 - 20
140 - 175
Clutch case
M 5
30 - 45
3.0 - 4.5
26 - 35
Engine Crankcase
M 5
†
70 - 110
7 - 11
60 - 95
Cylinder
M 5
†
70 - 100
7 - 10
60 - 90
Cylinder cover
M 4
14 - 28
1.4 - 2.8
12 - 24
Muffler
M 5
60 - 100
6 - 10
52 - 85
Others
Blade fastening nut
LM 10
280 - 320
28 - 32
245 - 280
Regular bolt, nut,
M 3
6 - 10
0.6 - 1.0
5 - 9
and screw
M 4
15 - 25
1.5 - 2.5
13 - 22
M 5
25 - 45
2.5 - 4.5
22 - 40
M 6
45 - 75
4.5 - 7.5
40 - 65
M 8
110 - 150
11 - 15
95 - 130
M 10
210 - 300
21 - 30
180 - 260
LM: Left hand thread. *Tapping screw
** Apply thread locking sealant. (See below)
†
The torque differences among four bolts should not exceed 20 kgf• cm (2Nm, 17in• lbf) on one cylinder or
crankcase.
1-4 Special repairing materials
Material
Location
Remarks
Adhesive
Clutch case, cushion
Loctite 406 or equivalent
Thread locking sealant
Carburettor insulator
Fuel tank
ThreeBond 1342 or equivalent
Stand
Grease
Gear case
Rewind spring
Lithium based grease
Starter center post