Kohler CH730-745 User Manual download pdf (Page 16)

Storage

If the engine will be out of service for two months or

more, use the following storage procedure:

1. Clean the exterior surfaces of the engine. On EFI

engines, avoid spraying water at the wiring

harness or any of the electrical components.

2. Change the oil and filter while the engine is still

warm from operation. See “Change Oil and Oil

Filter” on page 9.

3. The fuel system must be completely emptied, or

the gasoline must be treated with a stabilizer to

prevent deterioration. If you choose to use a

stabilizer, follow the manufacturers

recommendations, and add the correct amount for

the capacity of the fuel system. Fill the fuel tank

with clean, fresh gasoline. Run the engine for 2-3

minutes to get stabilized fuel into the rest of the

system. Close fuel shut-off valve when unit is

being stored or transported.

To empty the system, run the engine until the tank

and system are empty.

4. Remove the spark plugs. Add one tablespoon of

engine oil into each spark plug hole. Install the

plugs, but do not connect the plug leads. Crank

the engine two or three revolutions.

5. On units with EFI engines, disconnect the negative

(-) battery cable or use a "battery minder" trickle

charger while the unit is in storage.

6. Store the engine in a clean, dry place.

Parts Ordering

The engine Specification, Model, and Serial Numbers

are required when ordering replacement parts from

your Kohler Engine Service Dealer. These numbers are

found on the identification plate which is affixed to the

engine shrouding. Include letter suffixes if there are

any. See “Engine Identification Numbers” on page 6.

Always insist on genuine Kohler parts. All genuine

Kohler parts meet strict standards for fit, reliability, and

performance.

Major Repair

Major repair information is available in Kohler Engine

Service Manuals. However, major repair generally

requires the attention of a trained mechanic and the

use of special tools and equipment. Your Kohler

Engine Service Dealer has the facilities, training, and

genuine Kohler replacement parts necessary to perform

this service. For Sales & Service assistance call

1-800-544-2444 (U.S. & Canada) or contact your

Kohler Engine Dealer or Service Distributor, they're in

the Yellow Pages under Engines-Gasoline.

Specifications

Model: ....................................................................... CH18,20,22.......................................... CH25,26,730,740,745

Bore: ..................................... mm (in.) ..................... 77 (3.03)

.............................................. 83 (3.27)

Stroke: ................................... mm (in.) ..................... 67 (2.64) ............................................... 67 (2.64)

Displacement: ....................... cm

(in

) ..................... 624 (38.1)

............................................ 725 (44.0)

Power (@3600 RPM): ........... kW (HP) ..................... 13.4 (18*)/14.9 (20*)/16.4 (22*) ........... 18.4 (25*)/19.4 (26*)

18.6 (25*)/20.1 (27*)/20.9(28*)

Max. Peak Torque (@ RPM): N·m (ft. lb.) ..................... 43.7 (32.2) @2200 ................................ 54 (39.5) @2200

44.3 (32.7) @2400 ................................ 54.2 (40.0) @2800

50.6 (37.3) @2400 ................................ 53.7 (39.6) @2600

58.6 (43.2) @2400

57.9 (42.7) @2600

Compression Ratio: ................................................. 8.5:1 ..................................................... 9.0:1

Weight: .................................... kg (lb.) ..................... 41 (90) .................................................. 43 (94)

Lubrication: ........................................ Full Pressure w/full Flow Filter

Oil Capacity (w/filter) - approximate,

determined by oil filter and oil cooler used: 1.6-1.8 L (1.7-1.9 U.S. qt.)

Exhaust Emission Control System for models CH18,20,22,23,25,730,740 is EM.

Exhaust Emission Control System for models CH26 and CH745 are EM, O2S, ECM, MFI.

*Horsepower ratings exceed Society of Automotive Engineers Small Engine Test Code J1940. Actual engine horsepower is

lower and affected by, but not limited to, accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application,

engine speed and ambient operating conditions (temperature, humidity, and altitude). Kohler reserves the right to change

product specifications, designs and equipment without notice and without incurring obligation.

CH22 or CH23 engines with Spec. Numbers of 765xx have bore size of 80 mm (3.15 in.) and displacement of 674 cm

(41.1 in

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Kohler CH730-745 User Manual Page 16

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