Kohler Command Pro CV960 Service Manual page 31

Fuel Pump
General
These engines use either a pulse style fuel pump,
or optional remote-mounted electric fuel pump
of pulse style pumps is created by the oscillation of
positive and negative pressures within the crankcase.
through the rubber hose connected between the
pump and crankcase. The pumping action causes the
diaphragm on the inside of the pump to pull fuel in on
its downward stroke and to push it into the carburetor
on its upward stroke. Two check valves prevent fuel
from going backward through the pump.
Figure 5-1. Pulse Style Fuel Pump.
Figure 5-2. Optional Electric Fuel Pump.
Fuel Pump - Replacement
Replacing the Pulse Style Fuel Pump
Replacement pumps are available through your
source of supply. To replace the pulse pump follow
these steps. Note orientation of pump before
1. Disconnect the fuel lines from the inlet, outlet
the pump.
3. Connect the pulse line to the new fuel pump and
make sure opposite end is properly connected to
screws.Torque the screws to 2.3 N·m (20 in. lb.).
5. Reconnect the fuel lines to the inlet and outlet
Carburetor
General
jets on a matching intake manifold. The carburetor
Pulse
features a self-relieving choke, serviceable slow
Fuel Pump
jets, main jets and a fuel shutdown solenoid. See
Self-Relieving
Choke
Figure 5-3. Keihin 2-Barrel Carburetor.
Fuel System and Governor
pump is consistent with the removed
pump. Internal damage may occur if
installed incorrectly.
WARNING: Explosive Fuel
Section 5
5
Low Idle Fuel
Adjustments
(With Limiters)
Slow Jets
Bowl Vent
Fuel Shut-Off
Solenoid
Bowl Drain Screw
5.3