Kohler 7000 Series Reference manual

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© 2016 by Kohler Co. All rights reserved. ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044
Service
Bulletin KT715-KT745
Engine Stall
The potential exists for these engines to stall for no apparent reason. This issue is limited to KOHLER®
7000 Series engines within the serial number range of 45327xxxxx through 4613302464. Not all engines in
this serial range will exhibit the condition.
If a customer experiences a stall condition, check the standard items such as proper fuel level, inspect for
fuel cap vent operation, as well as proper fuel ow to the carburetor. If all of these items are found to be
correct and the stall condition still occurs, it is recommended to perform the following x that involves
cuing the existing evap line as shown in Figure 1, inserting a new T-Fiing (25 155 56-S) and a new line
(25 326 28-S 14" cut to an 8" length) that will connect to ing on air cleaner base.
Figure 2. New T-Fitting and New Line Assembly.
4. New T-Fiing and line assembly is shown
installed on the engine in Figure 3.
Cut Existing Evap Line in Half
Figure 1. Cut Existing Evap Line in Half.
3. Install the new T-Fiing at the location of the
cut line. Take the new 25 326 28-S 14" long line
and cut it to an 8" length. Install and route the
new 8" long line as shown in Figure 2.
NOTE: Refer to the appropriate service manual
disassembly and reassembly procedures as
needed.
1. To access the evap line, remove the air cleaner
cover, air cleaner element, and air cleaner
base.
2. Locate the existing evap line (as shown in
Figure 1), remove it from the purge port
nipple on the carburetor, and cut it in half.
Figure 3. New T-Fitting/Line Assembly Installed.
New 8" Long
Line Connects
to Evaporative
Nipple on Air
Cleaner Base
New T-Fitting
Connects to
Purge Port
Nipple on
Carburetor
Connects to OEM Evap/Tank

2
5. Route the new 8" long evap line from the
T-Fiing to the plugged port on the air
cleaner base. Remove and discard the plastic
cap at that location. See Figure 4.
Figure 4. Connect New 8" Long Evap Line to
Air Cleaner Base.
6. Reassemble the engine following service
manual reassembly procedures as
needed. Run the engine to conrm engine
performance.
Normal warranty terms apply. Submit warranty
claim using 25 326 71-S as the Defective Part
Number and ZZ (Other) as the Failure Code.
Labor Time of up to 0.5 hour using Labor Code
9999 for Misc Labor.
Remove Plastic Cap
and Connect New 8"
Long Evap Line
Breather Hose
Location