Kohler Magnum 18 HP Owner's Manual
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Kohler Magnum 18 HP Owner's Manual

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O
'
M
WNER
S
ANUAL
M
AGNUM 18 & 20 HP
H
C
ORIZONTAL
RANKSHAFT

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Summary of Contents for Kohler Magnum 18 HP

  • Page 1 WNER ANUAL AGNUM 18 & 20 HP ORIZONTAL RANKSHAFT...

  • Page 2: Safety Precautions

    Safety Precautions To ensure safe operations please read the following statements and understand their meaning. Also refer to your equipment owner's manual for other important safety information. This manual contains safety precautions which are explained below. Please read carefully. WARNING Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the warning is ignored.
  • Page 3 Because the cast iron cylinders can be rebored, these engines can last even longer. • Kohler engines are easy to service. All routine service areas (like the dipstick and oil fill, air cleaner, spark plugs, and carburetor) are easily and quickly accessible.

  • Page 4: Oil Recommendations

    Oil Sump Figure 1. Typical M18 Engine. Oil Recommendations Straight 30-weight (Kohler ‘‘Magnum’’) oil is preferred. SAE 10W-30 oil is not recommended above Using the proper type and weight of oil in the 32°F (0°C). Using this oil substantially increases oil crankcase is extremely important.

  • Page 5: Fuel Recommendations

    Fuel Recommendations Gasoline/Alcohol blends Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved as a fuel for Kohler WARNING: Explosive Fuel! engines. Other gasoline/alcohol blends are not Gasoline is extremely flammable and its vapors can approved.

  • Page 6: Pre-Start Checklist

    Do not jump start using another battery 1. Be sure to use the proper oil for the temperature (refer to “Battery” below). See your Kohler Engine expected. See Figure 2 on page 4. Service Dealer for trouble analysis.

  • Page 7: Maintenance Instructions

    • Have cylinder heads serviced ¹Perform these maintenance procedures more frequently under extremely dusty, dirty conditions. ²Have a Kohler Engine Service Dealer perform this service. 250 hours when leaded gasoline is used and/or multiviscosity oil is used. Twice daily on commercial use.

  • Page 8: Check Oil Level

    Check Oil Level Change Oil and Oil Filter The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized. Change Oil Check oil BEFORE EACH USE OR TWICE DAILY ON Change oil as shown in the ‘‘Oil Change Intervals’’ COMMERCIAL USE as follows: table.
  • Page 9 Some engines are the ‘‘Oil Change Intervals’’ table on page 8. Always use also equipped with an oiled, foam precleaner which a genuine Kohler oil filter, Part No. 52 050 02-S, and surrounds the paper element. See Figure 7. replace as follows:...

  • Page 10: Check Spark Plug

    Replace a dirty, bent, or damaged element with a genuine Kohler element. Handle new elements NOTE: Do not clean the spark plug in a machine carefully; do not use if the sealing surfaces are using abrasive grit.

  • Page 11: Kohler Carburetor Adjustment

    M18 and M20 engines are equipped with one of two hard to start, runs roughly, or stalls at low idle speed, it basic types of carburetors – Kohler or Walbro – fixed may be necessary to adjust or service the carburetor.
  • Page 12 3. Start the engine and run at half throttle for 5 to 10 Set the adjusting needle midway between the rich minutes to warm up. The engine must be warm and lean settings. before making final settings (steps 4, 5, 6, and 7). Lean 4.
  • Page 13 Walbro Fixed Jet 5. Low Idle Speed Setting: Place the throttle control into the ‘‘idle’’ or ‘‘slow’’ position. Set the low idle Low Idle speed to 1200 RPM* (± 75 RPM) by turning the 1-1/4 turns low idle speed adjusting screw in or out. Check 1-1/4 turns the speed using a tachometer.

  • Page 14: Parts Ordering

    For example, a starting problem could be caused by an empty fuel tank. Some common causes of engine troubles are listed in the following table. Do not attempt to service or replace major engine components, or any items that require special timing or adjustment procedures. Have your Kohler Engine Service Dealer do this work. Possible Cause No Improper...

  • Page 15: Specifications

    LIMITED 2 YEAR MAGNUM ENGINE WARRANTY Kohler Co. warrants to the original consumer that each new MAGNUM engine sold by Kohler Co. will be free from manufacturing defects in materials or workmanship in normal service for a period of two (2) years from date of purchase, provided it is operated and maintained in accordance with Kohler Co.’s instructions and manuals.
  • Page 16 FORM NO.: 52 590 02 ISSUED: 12/04 REVISED: MAILED: LITHO IN U.S.A. FOR SALES AND SERVICE INFORMATION IN U.S. AND CANADA, CALL 1-800-544-2444 ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044...

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