S10 FE350 FUEL SYSTEM
Carburetor
15
MAIN JET ELEVATION/SIZE CHART
ALTITUDE
FE290 ENGINE MAIN JET SIZE
FE350 ENGINE MAIN JET SIZE
0-3000 ft. (0-914.4 m)
82
85
3000-5000 ft. (914.4-1524 m)
80
82
5000-8000 ft. (1524-2438.4 m)
78
80
8000-10,000 ft. (2438.4-3048 m)
75
78
10,000 ft. and over (3048 m and over)
72
75
CHANGING THE MAIN JET
See General Warning on page 10-1.
1.
Disconnect battery and spark plug wire(s).
See Disconnecting the Battery – Gasoline Vehicles, Section 10,
2.
Remove the carburetor.
2.1. Turn fuel shut-off valve on fuel tank to the closed (OFF) position
(Figure 15-21, Page 15-29 or Figure
.
2.2. Loosen the intake air hose clamp (22) and disconnect the intake air hose (23) at the carburetor end only
2.3. Remove the governor guard (5).
2.4. Disconnect the governor cable (30) from the carburetor.
2.5. Disconnect the carburetor vent line (14).
2.6. Disconnect the fuel supply line (26) at the carburetor end only. Temporarily plug the end of the fuel line to
prevent fuel leakage.
2.7. Remove the carburetor retaining nuts (19), intake pipe (17), and carburetor (12).
See following NOTE.
NOTE:
Note the orientation of the gasket (16), between the carburetor intake pipe (17) and the carburetor body (12)
so that it can be replaced in the same orientation
When removing the carburetor body, the throttle return spring (11) must be disconnected. Note its proper
orientation so that it can be replaced in the same orientation.
The carburetor must be kept upright during removal.
3.
Position the carburetor with the drain screw (11) over a catch basin
.
4.
Turn the carburetor bowl drain screw counterclockwise two or three turns and drain all the fuel from the bowl
into the catch basin
. Tighten the drain screw to 10 in-lb (1.1 N·m). Return fuel to the
fuel tank or dispose of properly.
5.
Mark the body of the carburetor and the carburetor fuel bowl with an indelible ink marker so that, after removal,
the bowl can be installed again in the same position
2009 FE 350 Maintenance and Service Supplement
Page 15-3
