Echo CS-2511TES Service Manual page 83

CS-2511TES
251Ts, 251TCs
11-1 Troubleshooting guide (continued)
INSPECTING
Fuel system / Carburetor
Air filter
Fuel cap / strainer
Carburetor adjustment
Fuel tank/line/vent, Purge bulb
Carburetor leakage
Carburetor metering lever height
Carburetor diaphragms
Carburetor inlet needle valve
Welch plug
Crankcase pulse passage
Throttle trigger
Fuel (octane / freshness / purity)
2-stroke oil (grade / mix ratio)
Saw chain lubrication system
Oil cap
Oil tank / line / strainer
Oil tank vent
Worm gear
Auto-oiler
Guide bar / Oil holes
Engine
Cooling air passage
Muffler / Exhaust port
Cylinder compression
Crankcase / cylinder sealing
Crankcase / Cylinder
Piston / Piston ring
Oil seal / Ball bearings
Others
Chain brake
Springs
Chain tensioner
Saw chain
MAINTENANCE GUIDE
REFERENCES
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
4-1
4-3
4-8
4-4 to 4-7
4-9
4-11
4-13
4-12
4-14
4-10
4-15, 9-2
4-8-1
4-8-1
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
7-1
7-1, 7-3
7-2
7-4
7-5 to 7-7
Clean
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
8-2
8-3
1-2, 8-1
8-4
1-5, 8-6, 8-9
1-5, 8-7
8-10
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
6-1 to 6-2
9-3 to 9-4
10-2
Replace / Sharpen
81
Inspecting first.