Replacing Purge Bulb; Inspecting Crankcase Pulse Passage; Crankcase Pulse Passage - Echo shindaiwa CSG-7410ES Service Manual

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4-7 Replacing purge bulb
C
B
4-8 Inspecting crankcase pulse passage
FUEL SYSTEM
A
A
A
1. Remove carburetor from unit (Refer to "4-5 Re-
moving carburetor, fuel line and tank vent").
2. Disconnect fuel return line (B) and purge line (C)
from purge bulb (A).
3. Press leg of purge bulb (A) with appropriated
tool and remove the purge bulb.
4. Install new purge bulb.
1. Remove cylinder cover assembly, filter case and
cover stay (Refer to "4-1 Replacing air filter" and
"4-5 Removing carburetor, fuel line and tank vent").
2. Disconnect pulse line (A) from carburetor.
3. Drop a little 2 stroke oil in the end of pulse line (A)
as shown.
4. Remove spark plug and pull starter grip several
times. Oil should spit back from the hole of pulse
line.
WARNING
Always remove spark plug cap from spark
plug before pulling starter rope for main-
tenance or repairing. Otherwise, serious
personal injury can result.
Because ignition switch installed on this
unit automatically returns to RUN position,
Engine may start unintentionally.
5. If not, inspect whether pulse passage is clogged.
Repair or replace as required.
CSG-7410ES
EC741S
DANGER