Inspecting Metering Lever Height - Echo shindaiwa CSG-7410ES Service Manual

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4-9 Inspecting metering chamber and inlet needle valve (Continued)
H
J
F
4-10 Inspecting metering lever height
FUEL SYSTEM
F
G
K
J
G
H
F
6. Inspect inlet needle valve (J) if worn or sticky.
Clean or replace as required.
7. Clean inlet needle valve seat (K) using suitable
clean solvent (do not use metal tools).
NOTE: Causes of fuel flooding from carburetor to
cylinder are as follows:
- Improper assembling of metering lever (F) and
spring (H).
- Dirt between inlet needle valve (J) and valve
seat (K).
- Worn inlet needle valve tip.
8. Reassemble inlet needle valve (J), spring (H),
metering lever (F) and metering lever pin (G).
NOTE: Insure proper metering lever installation as
follows.
(1) Spring (H) is seated in its hole at chamber floor.
(2) Spring (H) is under dimple of metering lever.
(3) Metering lever fork is holding inlet needle valve (J).
9. Inspect metering lever height and adjust the
height as required (Refer to "4-10 Inspecting me-
tering lever height").
1. Inspect metering lever (F) height as shown.Me-
tering lever height should be flush with diaphragm
seat.
F
2. If necessary, gently bend metering lever (F) up
or down to set metering lever to proper position.
NOTE: When metering lever is:
Too high → Fuel flooding occurs
Too low → Fuel starvation / overheating occurs
CSG-7410ES
EC741S
diaphragm seat