Kohler Command Pro CV173 Service Manual page 31

Carburetor Servicing
Accidental Starts can cause severe injury or
death.
Disconnect and ground spark plug lead(s)
before servicing.
Before working on engine or equipment, disable
engine as follows: 1) Disconnect spark plug lead(s). 2)
Disconnect negative (–) battery cable from battery.
NOTE: Main and slow jets are fixed and size specific
and can be removed if required. Fixed jets for
high altitudes are available.
● Inspect carburetor body for cracks, holes, and other
wear or damage.
● Inspect float for cracks, holes, and missing or
damaged float tabs. Check float hinge and shaft for
wear or damage.
● Inspect fuel inlet needle and seat for wear or damage.
1. Perform removal procedures for appropriate air
cleaner and carburetor outlined in Disassembly.
2. Clean exterior surfaces of dirt or foreign material
before disassembling carburetor. Remove bowl
retaining screw, and carefully separate fuel bowl
from carburetor. Do not damage fuel bowl O-ring.
Transfer any remaining fuel into an approved
container. Save all parts. Fuel can also be drained
prior to bowl removal by loosening/removing bowl
drain screw.
3. Remove float pin and inlet needle. Seat for inlet
needle is not serviceable and should not be
removed.
4. Clean carburetor bowl and inlet seat areas as
required.
5. Carefully remove main jet from carburetor. After
main jet is removed, main nozzle can be removed
through bottom of main tower. Note orientation/
direction of nozzle. End with 2 raised shoulders
should be out/down adjacent to main jet.
6. Save parts for cleaning and reuse unless a jet kit is
also being installed. Clean slow jet using
compressed air or carburetor cleaner, do not use
wire.
NOTE: There are 2 O-rings on body of idle jet.
Carburetor is now disassembled for appropriate cleaning
and installation of parts in overhaul kit.
14 690 12 Rev. --
WARNING
KohlerEngines.com
High Altitude Operation
If this engine is operated at an altitude of 4000 ft.
(1219 meters) or above, a high altitude carburetor
kit is required. To obtain high altitude carburetor kit
information or to fi nd a Kohler authorized dealer, visit
KohlerEngines.com or call 1-800-544-2444 (U.S. and
Canada).
This engine should be operated in its original
confi guration below 4000 ft. (1219 meters).
Operating this engine with the wrong engine
confi guration at a given altitude may increase its
emissions, decrease fuel effi ciency and performance,
and result in damage to the engine.
Fuel System
31