Echo SRM-350ES User Manual
Page 4
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SERVICE INFORMATION
SRM-330ES
SRM-350ES
4
1-3 Torque limits
Descriptions
Size
kgf•cm
N•m
in•lbf
Starter
Pawl carrier
M 8
80 - 100
8 - 10
70 - 90
system Pawl carrier nut
M 8
160 - 200
16 - 20
140 - 175
Starter case
Tops
M 5*
30 - 45
3.0 - 4.5
26 - 40
Bottoms
M 5
50 - 80
5 - 8
45 - 70
Ignition Magneto rotor (Flywheel)
M 8
180 - 230
18 - 23
155 - 200
system Ignition coil
M 5
70 - 90
7 - 9
60 - 80
Spark plug
M 14
150 - 170
15 - 17
130 - 150
Fan cover
M 5
70 - 110
7 - 11
60 - 95
Fuel
Carburettor insulator
M 5*
60 - 80
6 - 8
50 - 70
system Carburettor
M 5
35 - 50
3.5 - 5.0
30 - 45
Fuel tank stand
M 5
50 - 80
5 - 8
45 - 70
Cleaner case
M 5*
30 - 45
3.0 - 4.5
26 - 40
Clutch
Clutch shoe
M 8
70 - 110
7 - 11
60 - 95
Engine Crankcase
M 5**
70 - 110
7 - 11
60 - 95
Cylinder
M 5**
70 - 110
7 - 11
60 - 95
Cylinder cover
M 5*
30 - 45
3.0 - 4.5
26 - 40
Muffler
M 6
60 - 100
6 - 10
50 - 90
Muffler cover
M 5*
30 - 45
3.0 - 4.5
26 - 40
Muffler stay
M 5
60 - 90
6 - 9
50 - 80
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.
* 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
Grease
Gear case
Rewind spring
Lithium based grease or ECHO LUBE
TM
Starter center post
Oil
Oil seal inner lips
Two-stroke engine oil or engine oil (SAE#30)
Drive shaft
Thread locking sealant
Starter case
Cleaner case
Loctite #242, ThreeBond #1324 or equivalent
Cylinder cover
Muffler cover
Carburettor insulator
Loctite #222, ThreeBond #1342 or equivalent