
FUEL SYSTEM
Carburetor
Page 14-4
2005 FE350 Gasoline Vehicle Maintenance and Service Supplement
14
Changing the Main Jet, Continued:
6. Remove the main jet (8) from the carburetor body and discard it
(Figure 14-2, Page 14-4)
.
NOTE:
Make sure the fuel nozzle (7) does not fall out of the carburetor body after removal of the main jet.
This is best accomplished by positioning the carburetor upside down during main jet removal
(Figure 14-2, Page 14-4)
.
7. Select the proper size main jet.
See Main Jet Elevation/Size Chart on page 14-2.
Check the size des-
ignation on the jet to make sure it is the correct part.
8. Install the new main jet and tighten it to 12 in-lb (1.4 N·m).
See following CAUTION and NOTE.
ý
CAUTION
• Do not remove the valve/spring assembly from the float assembly. Doing so will damage the
spring.
Figure 14-2 Changing the Main Jet
Drain carburetor over
a catch basin by turning
bowl drain screw (11)
counterclockwise
2 to 3 turns.
STEPS 2 AND 3
STEP 4
A
Mark carburetor
and corresponding
position of fuel bowl.
B
Check for
coil located in
groove above
both ears.
Check for
spring seated
in recess of
float body.
If spring looks
like this...
or this...
then adjust
spring to look
like this by...
C
D
holding float firmly...and...
rotating valve counterclockwise
to seat spring in seat of float bowl.
CAUTION: DO NOT REMOVE VALVE/SPRING
FROM FLOAT. TO DO SO WILL DAMAGE SPRING.
1
2
3
4
5
7
8
6
9
11
12
10