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Section 5
Fuel System and Governor
Troubleshooting - LPG Systems
If engine troubles are experienced that appear to be
caused by the carburetor, check the following areas
before adjusting the carburetor.
•
Make sure the air cleaner element is clean and all
air cleaner components are fastened securely.
This is especially critical on propane-fueled
engines.
•
Check for a loose or kinked vacuum line, causing
regulator not to open.
•
Check to make sure the fuel valve on the LPG
tank is fully opened.
•
Check gauge on LPG tank to make sure there is
sufficient fuel present.
If, after checking the items listed above, adjust or
service the carburetor as follows.
3 Way Catalytic
Muffler (Not Shown)
LPG Carburetor
Shown with
Self-Relieving
Choke
Figure 5-17. Main Components of Kohler Emission Sentry™ System.
5.12
Adjust Carburetor
Figure 5-16. LPG Main Fuel Setting.*
Oxygen Sensor
Coupling
Fuel Metering
Valve Body
1. With the engine stopped, reset the main fuel
setting by closing the adjusting screw until it
bottoms then turn it 2 1/4 to 2 1/2 turns open
(see Figure 5-16).*
Vacuum Line
Main Fuel Set
2 1/4 to 2-1/2
Turns Open
*NOTE: Engines equipped with Kohler Emission
Sentry™ controls have a fixed main jet
carburetor.
DC Stepper Motor
Adjustable
Load Screw
To Unit
Wiring Harness
(12 Volt Source)
Fuel Inlet from
Regulators
Adjustable Type Only
Electronic
Control Unit
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Table of Contents
Troubleshooting
