5.8
Section 5
Fuel System and Governor
• Inspect the fuel inlet needle and seat for wear or
damage.
• The choke plate is spring loaded. Check to make
sure it moves freely on the shaft.
NOTE
: The main and slow jets are fixed and side
specific and can be removed if required. Fixed
jets for high altitudes are available.
Float Replacement
If symptoms described in the carburetor
troubleshooting guide indicate float level problems,
remove the carburetor from the engine to check and/
or replace the float. Use a float kit to replace the float,
pin, float valve, clip, and screw.
1. Perform the removal procedures for the
appropriate air cleaner and the carburetor
outlined in Section 8 Disassembly.
2. Clean the exterior surfaces of dirt or foreign
material before disassembling the carburetor.
Remove the four mounting screws and carefully
separate the fuel bowl from the carburetor. Do
not damage the fuel bowl O-Rings. Transfer any
remaining fuel into an approved container. Save
all parts. Fuel can also be drained prior to bowl
removal by loosening/removal of the bowl drain
screw. See Figure 5-12.
Figure 5-13. Removing Float and Inlet Needle.
5. Attach the inlet needle to the plastic tang of the
float with the wire clip. The formed 90° lip
should point up, with the needle valve hanging
down. See Figure 5-14.
Figure 5-12. Fuel Bowl Removed From Carburetor.
3. Remove the float pin screw and lift out the old
float, pin and inlet needle. See Figure 5-13.
Discard all of the parts. The seat for the inlet
needle is not serviceable, and should not be
removed.
4. Clean the carburetor bowl and inlet seat areas as
required, before installing the new parts.
Clip
Inlet
Needle
Float
Figure 5-14. Float and Inlet Needle Details.
6. Install the float and inlet needle down into the
seat and carburetor body. Install the new pivot
pin through the float hinge and secure with the
new retaining screw. See Figure 5-15.
Retaining
Screw
Pivot
Pin
Figure 5-15. Installing Float Assembly.
Fuel Bowl
Bowl Drain Screw
Float
I
Inlet
Needle
