64
Reassembly
KohlerEngines.com 62 690 01 Rev. C
Governor Spring/RPM Chart
CH940-CH1000
Governor Idle Spring Color) High Speed (RPM)
Clear 1400-1625 RPM
Black 1626-1800 RPM
CH940, CH960, CH980
Governor Spring (Color) High Speed (RPM)
Red 3000-3150 RPM
Green 3151-3300 RPM
Green Patch 3301-3675 RPM
Red Patch 3676-3900 RPM
CH1000
Governor Spring (Color) High Speed (RPM)
Yellow Patch 3000-3150 RPM
Purple Patch 3151-3450 RPM
Purple 3451-3900 RPM
Install Oil Sentry
™
(if equipped)
1. Apply pipe sealant with Tefl on
®
(Loctite
®
PST
®
592™
Thread Sealant or equivalent) to Oil Sentry
™
threads
switch and install it into 1/8 in. port in closure plate.
Tighten switch to torque specifi cation.
2. Connect green wire lead to Oil Sentry
™
terminal.
Install Blower Housing and Cylinder Shrouds
1. Align and install blower housing.
2. Secure blower housing with four shoulder screws.
Tighten screws to torque specifi cation.
3. Install two cylinder shrouds and secure with shoulder
screws. Tighten screws to torque specifi cation.
Install Control Panel (If Equipped)
1. Install control panel to main control bracket and oil
fi lter housing. Tighten M5 and M6 screws to torque
specifi cation.
2. Connect Oil Sentry
™
indicator light wires.
3. Install knobs onto control levers.
Install Muffl er
1. Install new exhaust gaskets onto exhaust studs.
2. Install port liners (if equipped). Attach muffl er and
secure with four hex fl ange nuts onto exhaust studs.
Tighten hex fl ange screws to torque specifi cation.
3. Install any attaching hardware and brackets. Tighten
M6 and M8 screws to torque specifi cation.
4. Install spark arrestor (if used).
Install Oil Filter and Add Oil to Crankcase
NOTE: Make sure both oil drain plugs are installed and
tightened to torque specifi cations to prevent oil
leakage.
1. Install oil drain plugs. Tighten plugs to torque
specifi cation.
2. Install new oil fi lter.
3. Apply a thin fi lm of clean engine oil to rubber gasket
on oil fi lter and thread fi lter onto adapter nipple.
4. Install new oil fi lter to fi lter adapter or oil cooler.
5. Add oil to bring level up to F mark. Reinstall dipstick
and oil fi ll cap.
Connect Spark Plug Leads
Connect leads to spark plugs.
Prepare Engine for Operation
Engine is now completely reassembled. Before starting
or operating engine, follow proceeding steps.
1. Make sure all hardware is tightened securely.
2. Make sure oil drain plugs, Oil Sentry
™
pressure
switch, and a new oil fi lter are installed.
3. Fill crankcase with correct amount, weight, and type
of oil.
4. Adjust carburetor, idle fuel needles, or idle speed
adjusting screw as necessary.
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. Adjust carburetor mixture settings
as necessary (as available).
2. Adjust governed idle and high speed (RPM) to
required settings. Make sure maximum engine
speed does not exceed 3900 RPM (no load).
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