Echo CS-2511WES Service Manual

FUEL SYSTEM
34
CS-2511WES
251Ws
4-9 Testingcarburetor
NOTE: To perform this test, carburetor interior
should be wet with fuel. If dry, a little leakage may
occur.
1. Remove air cleaner cover, air lter and carbure-
tor.
2. Connect pressure tester 897803-30133 (A) to
carburetor tting (B).
3. Reinstall purge line (C) to carburetor tting (D).
4. Apply pressure approx. 100 kPa (1 kgf/cm
2
) (14
psi).
5. If pressure remains steady, follow step 6 and 7.
If pressure drops, proceed to step 8.
6. Lightly push purge bulb once. Pressure tester
reading should drop and remain 50 kPa (0.5 kgf/
cm
2
) (7 psi) or more.
7. If reading does not drop, inspect inlet needle
valve for sticking (Refer to 4-12 Inspecting inlet
needle valve) or metering lever height is too low
(Refer to 4-11Inspectingmeteringleverheight).
If pressure remain 50 kPa (0.5 kgf/cm
2
) (7 psi) or
more, remove carburetor and inspect carburetor
following step 9.
8. If pressure drops at step 4, remove carburetor.
9. Submerge carburetor in suitable clean solvent to
locate the leak by applying pressure approx. 100
kPa (1 kgf/cm
2
) (14 psi).
10. If air bubbles come out between pump cover
and carburetor body (E), inspect pump diaphragm,
pump gasket, and diaphragm seat of carburetor
body (Refer to 4-13 Inspecting diaphragmand
others).
11. If air bubbles come out from throttle bore (F),
inspect inlet valve, metering lever spring, and me-
tering lever height (Refer to 4-12 Inspecting inlet
needle valve and4-11Inspectingmeteringlever
height).
12. Reassemble removed parts.
E
F
A
D
B
C

Echo CS-2511WES Specifications

General

Brand	Echo
Model	CS-2511WES
Category	Chainsaw
Language	English