Echo shindaiwa PB-8010 - Inspecting Diaphragm and Others; Inspecting Main Jet

FUEL SYSTEM
PB-8010, EB810
33
4-11 Inspecting diaphragm and others
1. Remove pump cover (A).
2. Inspect purge bulb (B) for crack or fatigue. Replace
as required.
3. Remove air purge body (C).
4. Inspect metering diaphragm (D) for hardening,
distortion, or pin hole. Replace as required.
5. Remove pump body assembly (E). If blocked with
dust, gently clean with compressed air.
NOTE: To avoid damaging disc valve (e1), plug the
valve with fi nger when using compressed air.
6. Inspect inlet screen (F). If blocked with dust, re-
move and clean. Replace if defective.
7. Inspect pump diaphragm (G) and replace if hard-
ened or curled at valve tabs.
8. Inspect metering diaphragm gasket (H) and pump
gasket (J) and replace if defective.
9. Inspect main jet (K) if clogged. Replace as re-
quired, referring to “4-12 Inspecting main jet”.
10. Inspect O-ring (L) for crack or fatigue. Replace
as required.
11. Gently clean fuel passages in carburetor body
with compressed air.
4-12 Inspecting main jet
1. Carefully pry main jet (A) from carburetor with a
small screwdriver.
2. Inspect main jet (A). Clean or replace as re-
quired.
3. Inspect O-ring (B) under main jet and replace as
required.
4. Clean the fuel passage of carburetor body.
A
B
C
D
E
F
G
H
J
K
L
A
B
e1