Smart-Choke; Smart-Choke Components - Kohler KS530 Service Manual

Fuel System

Smart-Choke

™
Diaphragm assembly consists of a spring controlled diaphragm for initial choke pull-off and a thermostat to completely
open choke while engine warms up. A vacuum signal from intake manifold is routed through a check valve to
diaphragm and partially opens choke once engine starts. To complete choke opening, a bimetallic spring in diaphragm
assembly heats up over a preset time once this thermostat sees 12V as activated by oil pressure switch. When
engine is cold, a spring on diaphragm, in conjunction with a bimetallic spring, will hold choke closed for starting. When
engine is warm, bimetallic spring holds choke completely open while engine is running. Choke will be 2/3 closed when
warm and not running, allowing for partial choke on a hot restart. These two elements work together to operate a
smooth choke system that facilitates easy reliable starting in all conditions.
Smart-Choke Components
™
A
B
Check Valve
A
Assembly
E Choke Linkage
I Carburetor Assembly
32
C
C
D
B
F
B Vacuum Hose
F Intake Manifold
J Carburetor Gasket
KohlerEngines.com
E
I
H
G
C K40 x 1.79 Screw
Intake Manifold
G
Gasket
K Carburetor Nut
L
K
K
J
D Diaphragm Assembly
Carburetor Gasket
H
(Throttle)
L Intake Adapter
22 690 01 Rev. --