Echo CS-310 Service Manual

FUEL SYSTEM
CS-310
23
B
A
4-1 Inspecting air fi lter
1. Close choke shutter. Remove cylinder cover.
2. Push down air fi lter retainer (A). Lift tabs (B) and
remove air fi lter (C).
3. Inspect the surface of air fi lter. If blocked with
dirt or dust, remove the obstruction using brush.
WARNING DANGER
Wear eye protection when working with
compressed air. Eye damage can occur from
fl ying particles.
4. If heavily blocked with dirt or dust, clean air fi lter
with compressed air.
5. Replace air fi lter with new one if heavily soiled
or damaged.
4-2 Inspecting fuel cap and fuel strainer
1. Remove fuel cap.
2. Inspect fuel cap for cracks and O-ring (A) for
cuts or damage, and replace with new one as re-
quired.
3. Replace connector (B) if damaged.
4. Pull fuel strainer (C) from fuel tank using a wire
hook (D). Clean fuel strainer. Replace if defective
or heavily soiled.
5. Reinstall fuel cap.
A
B
C
B
D
C

Echo CS-310 Specifications

General

Engine Displacement	30.5 cc
Bar Length	14 inches
Weight	8.8 lbs
Chain Pitch	3/8 inch
Chain Gauge	0.050 inch