Reassembly
10119 690 01 Rev. -- KohlerEngines.com
Testing Engine
It is recommended engine be operated on a test stand or
bench prior to installation in equipment.
1. Set engine up on a test stand. Install an oil pressure
gauge. Start engine and check to be certain oil
pressure (20 psi or more) is present. Run engine at
idle for 2-3 minutes, then 5-6 minutes more between
idle and midrange.
2. Adjust idle speed screw located on throttle body as
necessary. Standard idle speed setting for EFI
engines is 1500 RPM, but certain applications might
require a different setting.
3. Mechanical Governor: Adjust governed idle and
high speed (RPM) to required settings. Make sure
maximum engine speed does not exceed 3900 RPM
(no load).
4. Electronic Governor: Attach 12 volt jumper wire to
speed control input red wire with yellow tracer.
Engine speed should increase to high. Make sure
maximum engine speed does not exceed 3900 RPM
(no load). If engine speed does not increase, refer to
Governor section for proper troubleshooting and
diagnostics.
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