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FUEL SYSTEM

CS-370ES

CS-420ES

4-1 Inspecting air filter

1. Close choke shutter. Remove cleaner lid, air

cleaner bracket and air filter.

DANGER

Wear eye protection when working with com-

pressed air. Eye damage can occur from

flying particles.

2. Inspect the surface of air filter. If blocked with

dirt or dust, remove the obstruction using brush.

NOTE : When cleaning the surface of air filter, use

brush lightly.

3. If heavily blocked with dirt or dust, clean air filter

with compressed air.

NOTE : Blow with compressed air from inside of filter. If blowing with compressed air from outside of air

filter, filter paper may be clogged with particles.

NOTE : Do not wash air filter by solvent or gasoline to avoid damaging it.

4. Replace air filter with new one if heavily soiled or damaged.

4-2 Inspecting fuel cap and strainer

1. Remove fuel cap.

2. Inspect fuel cap for cracks and O-ring (A) for cuts

or damage.

3. Replace connector (B) if damaged.

4. Pull fuel strainer (C) from fuel tank using a wire

hook (D) and clean fuel strainer. Replace if defective

or heavily soiled. Install fuel cap.

Echo CS-370ES User Manual

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