FUEL SYSTEM
36
CS-2511WES
251Ws
4-12 Inspecting inlet needle valve
1. Remove metering lever (A) and pivot pin. Re-
move spring (B) and inlet needle valve (C).
2. Inspect inlet needle valve if worn or sticky. Clean
or replace as required.
NOTE:
Causes of fuel flooding from carburetor to
cylinder are as follows:
- Improper assembling of metering lever and
spring.
- Dirt between inlet needle valve and valve seat.
- Worn inlet needle valve tip.
3. Clean inlet needle valve seat using suitable
clean solvent (do not use metal tools).
4. Reassemble inlet needle valve (C), spring (B),
metering lever (A) and pivot pin.
NOTE:
Insure proper metering lever installation as
follows.
(1) Spring is seated in its hole at chamber floor.
(2) Spring is under dimple of metering lever.
(3) Metering lever fork is holding inlet needle valve.
A
B
C
