Echo CS-420ES Service Manual

23
FUEL SYSTEM
CS-370ES
CS-420ES
4-3 Replacing purge bulb
NOTE: It is possible to replace purge bulb, without
removing carburetor from the unit.
1. Remove switch bracket (A) from engine cover
(Refer to “3-5 Replacing ignition switch”).
2. Remove fuel return line (B) and fuel inlet line (C)
from purge bulb.
3. Pinch hooks (D) of purge bulb with needlenose
pliers and remove purge bulb.
4. Install new purge bulb.
5. Connect fuel inlet line (C) to shorter fitting (F).
6. Connect fuel return line (B) to the other fitting (E).
A
B
D
C
B
F
E
C

Echo CS-420ES Specifications

General

Saw Chain Gauge	0.050 inches
Fuel Capacity	0.41 liters
Weight	4.6 kg
Saw Chain Pitch	3/8 inches
Bar Length	16 inches