Kohler Command PRO CH620-CH740 Owner's Manual page 95

8 mm Governor Lever and Hole Position/RPM Chart for CH20-CH740 Engines
Governor Shaft
Confi guration
Needle Bearing
Standard
(Parent Material)
8 mm Governor Lever and Hole Position/RPM Chart for CH750 Engines
Governor Shaft
Confi guration
Standard
(Parent Material)
Install Control Panel (if equipped)
1. Install panel to blower housing.
2. Connect throttle control cable or shaft.
3. Connect choke control cable to control bracket.
4. Connect Oil Sentry
™
Install Valve Covers
Torque Sequence
1
4
NOTE: Do not scrape old RTV sealant (if used) off
sealing surface of cylinder head as this could
cause damage and result in leaks. Use of gasket
remover solvent (paint remover) is
recommended.
NOTE: Second fastener may secure fuel pump bracket
on earlier models.
24 690 06 Rev. K
Intended Maximum RPM
High Idle WOT
3744 3600
3120 3000
3888 3600
3780 3500
3672 3400
3564 3300
3456 3200
3348 3100
3240 3000
3132 2900
3024 2800
Intended Maximum RPM
High Idle
3888
3780
3672
3564
3456
3348
indicator light wires.
3
2
KohlerEngines.com
Non-Accelerator Pump
Carburetor
Spring Color Hole No.
Orange 2
Clear 1
Red 4
Purple 3
Black 3
Red 3
Purple 2
Blue 2
Orange 1
Clear 2
Red 1
WOT Spring Color
3600
3500
3400
3300
3200
3100
Three valve cover designs have been used. First type
used a gasket and RTV sealant between cover and
sealing surface of cylinder head. Second type had a
black O-ring installed in a groove on underside of cover
and may have metal spacers in bolt holes. Latest design
uses a yellow or brown O-ring, with bolt hole spacers
molded in place. Tightening torque differs between
gasket and O-ring style covers. Kits are available for
converting to latest O-ring type covers. Differences are
pointed out in following installation steps.
1. If using gasket or sealant type cover, prepare sealing
surfaces of cylinder head and cover, refer to Tools
and Aids for approved sealants. Always use fresh
sealant. Using outdated sealant could result in
leakage. With O-ring type covers, make sure sealing
surfaces are clean.
2. Make sure there are no nicks or burrs on sealing
surfaces.
3. For covers requiring RTV sealant, apply a 1.5 mm
(1/16 in.) bead to sealing surface of both cylinder
heads, install a new cover gasket on each, then
apply a second bead of sealant on top surface of
gaskets. For O-ring type covers, install a new O-ring
in groove of each cover. Do not use gaskets or RTV
sealant.
4. Locate cover with oil fi ll neck on same side as
removed and install lifting strap in original position.
With O-ring type covers, position cover on cylinder
head. If loose spacers were used, insert a spacer in
each screw hole. On both types, install four screws
in each cover and fi nger tighten.
5. Torque valve cover fasteners to proper specifi cation
using sequence shown.
Reassembly
Accelerator Pump Carburetor
Spring Color Hole No.
-
-
Purple
Black
Red
Orange
Blue
Orange
Black
Red
Clear
With Governed Idle System
Hole No.
Blue
Purple
Orange
Green
Black
Red
-
-
3
3
3
2
2
1
1
1
1
3
2
1
1
1
1
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