Kohler SV810-840 Service Manual page 34

Section 5
Fuel System and Governor
Fuel Filter
every 100 hours
Fuel Line
Regulations, these engines use Low Permeation
requirements. Standard fuel line may not be used.
1. Check the following:
a. Make sure the fuel tank contains clean, fresh,
proper fuel.
b. Make sure the vent in fuel tank is open.
c. Make sure the fuel valve is open.
d. Make sure vacuum and fuel lines to fuel
pump are secured and in good condition.
2. Check for fuel in the combustion chamber.
a. Disconnect and ground spark plug leads.
b. Close the choke on the carburetor.
c. Crank the engine several times.
d. Remove the spark plug and check for fuel at
the tip.
pump.
fuel pump.
4. Check the operation of fuel pump.
carburetor.
b. Crank the engine several times and observe
5.2
annually or
Troubleshooting – Fuel System Related Causes
Test
Fuel System Tests
When the engine starts hard, or turns over but will
not start, it is possible that the problem is in the fuel
problem, perform the following tests.
Conclusion
2. If there is fuel at the tip of the spark plug, fuel is
reaching the combustion chamber.
If there is no fuel at the tip of the spark plug,
does
fuel pump (Test 4).
If fuel does not
problem and reconnect the line.
4. If fuel does
carburetor. (Refer to the Carburetor portions of
this section.)
If fuel does not
clogged fuel line. If the fuel line is unobstructed,
line. If none of the checks reveal the cause of the
problem, replace the pump.