23
Fuel System
14 690 01 Rev. G KohlerEngines.com
Auto Choke Components - Link Design
A
B
C
E
D
A
B
C
D
E
A
Bimetallic Spring
Housing
B Wire Choke Linkage
C Choke Plate D Choke Lever
E Choke Link
When engine is cold, spring around base of choke shaft
holds choke closed for starting. When engine starts,
governor closes throttle from wide open to set governor
speed. As throttle closes, link between throttle and choke
operates choke to a slightly open position. After engine
warms up, bimetallic spring overcomes choke shaft
spring force and holds choke completely open.
Use these steps to check function of link design auto
choke.
1. Remove air cleaner cover and element.
2. Choke plate should be fully close when engine is
cold.
3. There should be light spring tension holding choke
closed.
4. There should not be any binding when choke shaft
assembly is rotated, which could cause choke to
remain partially open.
5. When engine is started, choke plate should be 1/3
open. Choke plate should start to open and be
completely open within 2 to 3 minutes at room
temperature.
6. Reinstall air cleaner element and secure cover.
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