TP-5393 9/93 Scheduled Maintenance 3-11
Choke Adjustments
A Kohler thermo-electric automatic choke is used to
enrich the gasoline fuel mixture during starting. The
choke automatically closes asthe ambient temperature
cools or as the engine temperature decreases. As the
enginewarms,thecoilsinsidethechokeallowthechoke
plateto open. If readjustment is needed,loosen the two
screwssecuringthechokebrackettothecarburetorand
shift the position of the choke assembly (Figure 3-13).
When properly set, thechoke platewill bewithin 5 to 10
degrees of full open at approximately 70°F (21°C).
1-905
1
3
2
1. Scribe Mark
2. Casting Mark
3. Adjusting Screws
Figure 3-13. Automatic Choke Adjustment
Choke Adjustment Procedure
For Operation above 10_F (-12.2_C)
(From original factory-set position)
1. Where the choke casting mark meets the black
plastic cover of the choke, make a scribe mark on
the choke’s black cover. See Figure 3-13.
2. Loosen the two choke adjusting screws and rotate
choke cover counterclockwise towards leaner
setting (follow direction of arrow on choke).
3. Whenthe distance betweenthe scribe mark on the
blackcover and thecasting mark is 5/16 in. (8mm)
tighten the two choke adjusting screws.
Choke Adjustment Procedure
For Operation below 10_F (-12.2_C)
NOTE
If not previously adjusted, leave as factory set.
Otherwise, follow procedure below.
1. If scribe mark has been made onthe choke’s black
cover, loosen the two choke adjusting screws and
rotatechoke cover clockwise(opposite direction of
arrow on choke).
2. Whenthe scribe markon the black plastic cover of
the choke and the choke casting mark line up,
tighten the two adjusting screws.
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