5.11
Section 5
Fuel System and Governor
5
Slow (Idle Fuel) Jets
O-ring
O-ring
Figure 5-22. Slow Jets and O-ring Detail.
5. Remove the idle speed (RPM) adjustment screw
and spring from the carburetor. Discard the parts.
NOTE: The carburetor is now disassembled for
appropriate cleaning and installation of the
parts in the overhaul kit. Further disassembly
is not necessary. The thro
tt
le sha
ft
assembly,
fuel inlet seat, idle fuel adjustment screws
with limiter, and carburetor body, are non-
serviceable items and should not be removed.
The choke sha
ft
assembly is serviceable,
however it should not be removed unless a
Choke Repair Kit will be installed.
6. Clean the carburetor body, main jets, vent ports,
seats, etc., using a good commercially available
carburetor solvent. Keep away from plastic or
rubber parts if non-compatible. Use clean, dry
compressed air to blow out the internal channels
and ports. Do not use metal tools or wire to
clean ori
fi
ces and jets. Inspect and thoroughly
check the carburetor for cracks, wear, or damage.
Inspect the fuel inlet seat for wear or damage.
Check the spring loaded choke plate to make sure
it moves freely on the sha
ft
.
7. Clean the carburetor fuel bowl as required.
8. Install the two main nozzles into the towers
of the carburetor body. The end of the main
nozzles with the two raised shoulders should
be out/down (adjacent to the main jets). Make
sure the nozzles are completely bo
tt
omed.
Carefully install the main jets into the towers
of the carburetor body on the appropriate side,
as identi
fi
ed when removal was performed. See
Figure 5-23.
Nozzle End with
Two Shoulders
(Out/Down)
Main
Jets
Figure 5-23. Installing Main Nozzles and Main Jets.
9. Make sure the O-ring near the bo
tt
om of each
slow jet is new, or in good condition. Align
and insert the two slow jets into the top of the
carburetor. See Figure 5-22.
10. Install the large
fl
at retaining washer and secure
with the mounting screw, a
tt
aching the ground
lead if originally secured by the screw.
11. Install the new idle speed (RPM) adjustment
screw and spring onto the carburetor. Thread
in until 3 or 4 threads are exposed, as an initial
adjustment. See Figure 5-24.
Idle Speed
Screw and
Spring
Figure 5-24. Installing Idle Speed Adjusting Screw
and Spring.
Содержание Comand Pro CH1000
Страница 1: ...SERVICE MANUAL HORIZONTAL CRANKSHAFT CH940 CH1000...
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Страница 30: ...4 4 Section 4 Air Cleaner and Air Intake System...
Страница 52: ...6 6 Section 6 Lubrication System...
Страница 96: ...8 16 Section 8 Disassembly...
Страница 110: ...Section 9 Inspection and Reconditioning 9 14...
Страница 140: ...10 30 Section 10 Reassembly...
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