SERVICE INFORMATION
5
CS-2511WES
251Ws
1-4 Specialrepairingmaterials
Material Location Remarks
Thread locking sealant Stud bolt
Loctite #242, ThreeBond #1324 or equivalent
Ignition coil
Loctite #222, ThreeBond #1342 or equivalent
Ignition switch
Loctite #242, ThreeBond #1324 or equivalent
Grease Recoil starter
EPNOC AP2 (Lithium based grease)
P/N X695-000060
Needle bearing, clutch
Worm gear
Oil seal lip
Chain brake (metal contact part) Molybdenum grease (approx.1 gram)
1-3 Torquelimits
Descriptions Size kgf•cm N•m in•lbf
Starter system Starter pawl
M5 30
-
45 3
-
4.5 25
-
40
Starter case
M4 20
-
30 2
-
3 20
-
25
Ignition system Magneto rotor (Flywheel)
M8 250
-
290 25
-
29 220
-
255
Ignition coil
M4* 30
-
45 3
-
4.5 25
-
40
Ignition switch
M3* 3
-
5 0.3
-
0.5 3
-
4
Spark plug
M10 100
-
150 10
-
15 90
-
135
Fuel system Carburetor
M5 30
-
45 3
-
4.5 26
-
40
Intake bellows
M4 30
-
45 3
-
4.5 26
-
40
Clutch Clutch hub
LM8 250
-
290 25
-
29 220
-
255
Engine
Crankcase
M4 30
-
45 3
-
4.5 26
-
40
Cylinder
M4 30
-
45 3
-
4.5 26
-
40
Engine mount
M4 35
-
50 3.5
-
5 30
-
45
Muffler
M5 60
-
90 6
-
9 52
-
80
Muffler cover
M4
†
20
-
30 2
-
3 20
-
25
Others Auto-oiler
M4 30
-
45 3
-
4.5 26
-
40
Front handle Clutch side
M5 30
-
40 3
-
4 26
-
35
Recoil side
M4
†
25
-
30 2.5
-
3 18
-
26
Compression spring
M4
†
20
-
35 2
-
3.5 20
-
30
Brake cover
M4
†
20
-
30 2
-
3 20
-
25
Sprocket guard plate
(Sprocket guard side)
M4
†
20
-
30 2
-
3 20
-
25
Brake lever (Hand guard)
M5 30
-
45 3
-
4.5 26
-
40
Chain catcher
M5 30
-
45 3
-
4.5 26
-
40
Stud bolt
M8
*
150
-
200 15
-
20 130
-
220
Bolt (at guide bar mount)
M5 30
-
45 3
-
4.5 26
-
40
Guide bar nut
M8 120
-
150 12
-
15 105
-
135
Spike
M5
†
30
-
45 3
-
4.5 26
-
40
Regular bolt, nut and screw
M3 6
-
10 0.6
-
1 5
-
9
M4 15
-
25 1.5
-
2.5 13
-
22
M5 25
-
45 2.5
-
4.5 22
-
40
LM: Left-hand thread * Apply thread locking sealant. (See below)
†
Tapping screw
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