19. Hold carburetor body so fl oat assembly hangs
vertically and rests lightly against fuel inlet needle.
Inlet needle should be fully seated but center pin of
needle should not be depressed. Check fl oat height.
20. Correct fl oat height setting is 3 mm (0.118 in.),
measured from body of carburetor to top of fl oat.
Replace fl oat if height is diff erent than specifi ed. DO
NOT attempt to adjust.
Nikki One-Barrel Carburetor Float Detail
B
A
A Float B
Measure From
Casting Surface
When proper fl oat height is obtained, carefully install
carburetor air horn assembly onto carburetor body,
using a new gasket. Secure with new screws. If
equipped, make sure to reinstall solenoid ground
lead and solenoid lead clamp on screws. Torque
screws to 2.9 N·m (26 in. lb.).
21. If drain screw was removed, reinstall it.
22. Use new mounting gaskets for air cleaner and
carburetor. Reinstall carburetor and disassembled
components following Reassembly procedures.
23. Reconnect spark plug leads and negative battery
cable. Start engine and perform Low Idle Speed
(RPM) Adjustment.
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
3324 690 06 Rev. P KohlerEngines.com
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