Kohler Gasoline Engine - Toro Field Pro 6040 Service Manual

Kohler Gasoline Engine

g396026
1. Throttle and Choke linkages
2. Fuel shut-off solenoid
Engine: General Information
(shown with hydraulic fluid cooler removed)
3. Voltage regulator/rectifier
4. Oil cooler
The engine includes a pulse style fuel pump and a fuel shut-off solenoid.
Oscillating crankcase pressure causes a diaphragm inside the pulse style fuel
pump to pull fuel in on the piston down-stroke and to push it into carburetor
on the piston up-stroke. Two check valves prevent fuel from going backward
through pump. The fuel shut-off solenoid has a spring loaded pin that retracts
when 12 volts is applied, allowing fuel flow to the carburetor main jet. When
current is removed, the pin extends blocking the fuel flow.
Figure 6
5.
Page 4–4
Pulse style fuel pump
Field Pro® 6040
22267SL Rev A