Kohler HD Series Service Manual page 67

Install Air Cleaner Assembly
A Vent Hose
1. Slide new air cleaner gasket onto carburetor studs.
2. Slide air cleaner base onto carburetor studs. Secure
base by starting nuts onto studs and screw into
crankcase.
3. If engine is equipped with fuel pump, carefully install
clamp securing vent hose to top of air cleaner base.
4. Attach breather hose to crankcase.
5. Torque nuts and screw to 8 N·m (71 in. lb.).
6. Install paper element into air cleaner base. If
equipped, install precleaner into air cleaner cover.
Attach air cleaner cover and hand tighten knob.
Install Dipstick Tube (if equipped)
Insert dipstick tube into oil pan and secure to crankcase
with screw. Torque screw to 8 N·m (71 in. lb.).
Install Muffl er Assembly
NOTE: Muffl er and guard is either secured with lock
nuts on exhaust studs or with shoulder screws
into exhaust port.
Lock Nuts/Exhaust Studs
1. Install heat defl ector gasket onto exhaust mounting
studs, with gasket folds facing cylinder head.
2. Slide muffl er onto exhaust studs.
3. Install muffl er guard onto exhaust studs and secure
with nuts. Torque to 9.5 N·m (84 in. lb.).
Shoulder Screws
Position muffl er and muffl er guard on exhaust port and
secure with shoulder screws. Torque to 9.5 N·m (84 in.
lb.).
Install Blower Housing (if equipped)
Install blower housing onto studs.
Install Retractable Starter (if equipped)
Place retractable starter onto studs protruding from
blower housing, secure with nuts. Torque nuts to 8 N·m
(71 in. lb.).
14 690 10 Rev. --
A
B
B Clamp
KohlerEngines.com
Install Engine Cover and Retractable Starter (if
equipped)
Install engine cover and retractable starter onto studs,
secure with nuts. Torque nuts to 8 N·m (71 in. lb.).
Install Fuel Cap
Screw fuel cap tightly onto fuel tank.
Prepare Engine for Operation
Engine is now reassembled. Before starting or operating
engine be sure to do following:
1. Make sure all hardware is properly torqued.
2. Make sure oil drain plugs are tightened securely.
3. Ensure crankcase is fi lled with correct oil.
Connect Spark Plug Lead
Connect lead to spark plug.
Testing Engine
NOTE: Engine can be installed in application and
speeds can be checked/set.
NOTE: High speed and idle speed is listed for each
engine specifi cation in our online parts lookup
system (www.kohlerplus.com site). This is listed
in Attributes on Details tab of engine
specifi cation.
1. Run engine for 5-10 minutes between idle and
mid-range. Adjust throttle and choke controls and
high speed as necessary.
For engines with Fixed Speed, bend adjustment tab
on speed control bracket up to increase or down to
reduce speed. Refer to Speed Control Details earlier
in this section.
For engines with Variable Speed, turn high speed
screw on speed control bracket clockwise to
decrease or counterclockwise to increase speed.
Refer to Speed Control Details earlier in this section.
Make sure maximum engine speed does not exceed
recommended RPM.
2. Adjust carburetor low idle speed screw so low idle
speed is set to engine or application specifi cations.
Refer to Fuel System.
Reassembly
67