Inspecting Inlet Needle Valve - Echo shindaiwa PB-8010 Service Manual

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4-10 Inspecting inlet needle valve

E
D
FUEL SYSTEM
B
C
D
B
C
E
F
1. Loosen screw (A) and remove metering lever (B),
metering lever pin (C), metering lever spring (D)
and inlet needle valve (E).
A
2. Inspect inlet needle valve (E) if worn or sticky.
Clean or replace as required.
3. Clean inlet needle valve seat (F) using suitable
clean solvent (Do not use metal tools).
NOTE: Causes of fuel fl ooding from carburetor to
cylinder are as follows:
- Improper assembling of metering lever (B) and
spring (D).
- Dirt between inlet needle valve (E) and valve
seat (F)
- Worn inlet needle valve tip.
4. Reassemble inlet needle valve (E), spring (D),
metering lever (B) and metering lever pin (C).
NOTE: To verify proper metering lever installation,
check the following:
(1) Spring (D) is seated in its hole at chamber fl oor.
(2) Spring (D) is under dimple of metering lever.
(3) Metering lever fork is holding inlet needle valve (E).
5. Inspect metering lever height (Refer to "4-9 In-
specting metering lever height").
PB-8010, EB810