User manual KOHLER M12

[. . . ] MAGNUM 8, 12, 16 HP HORIZONTAL CRANKSHAFT OWNER'S MANUAL Congratulations You have selected a fine four-cycle, single cylinder, air-cooled engine. Kohler designs long life strength and on-the-job durability into each enginemaking a Kohler engine dependabledependability you can count on. All routine service areas (like the dipstick and oil fill, air cleaner, spark plug, and carburetor) are easily and quickly accessible. Parts subject to the most wear and tear (like the cylinder, crankshaft, and camshaft) are made from precision formulated cast iron. [. . . ] Remove the precleaner (if so equipped) element cover and paper element. Do not wash the paper element or use pressurized air, as this will damage the element. Replace a dirty, bent, or damaged element with a genuine Kohler element. Handle new elements carefully; do not use if the sealing surfaces are bent or damaged. Also check the element cover, seals and breather tube for damage or improper fit. Replace all damaged air cleaner components. NOTE: Operating the engine with damaged or loose components could allow unfiltered air into the engine causing premature wear and failure. Tighten the cover nut securely to be sure the element is sealed tightly against the element cover and base plate. If so equipped, install the precleaner (washed and oiled) over paper element. When air cleaner element replacement is necessary always use genuine Kohler parts. Clean Air Intake/Cooling Areas To ensure proper cooling, make sure the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times. Every 50 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and other cooling shrouds. NOTE: Operating the engine with a blocked grass screen, dirty or plugged cooling fins, and/or cooling shrouds removed, will cause engine damage due to overheating. Check Spark Plug Every 200 hours of operation, remove the spark plug, check its condition, and reset the gap or replace with a new plug as necessary. Before removing the spark plug, clean the area around the base of the plug to keep dirt and debris out of the engine. Some grit could remain in the spark plug and enter the engine causing extensive wear and damage. 9 3. Adjust the gap as necessary by carefully bending the ground electrode. Wire Gauge Spark Plug Reduction Gear Units On engines equipped with a reduction gear unit, remove the oil plug on lower part of cover every 50 hours of operation to check oil level. With the engine level, the oil level of the unit should be up to the bottom of the oil plug hole. Use the same weight and grade of oil as used in the engine crankcase. Carburetor Troubleshooting and Adjustments Kohler M8 - M16 engines are equipped with one of three types of carburetors; Kohler adjustable main jet, Walbro adjustable main jet, or Walbro fixed main jet. Walbro carburetors have the brand name embossed in the side of the body casting, near the top. The carburetor is designed to deliver the correct fuel-to-air mixture to the engine under all operating conditions. The main fuel and idle fuel needles on adjustable jet carburetors are set at the factory and normally do not require further adjustment. On fixed jet carburetors, the low idle fuel needle is also set at the factory and normally does not need further adjustment. The main fuel jet is calibrated and installed at the factory and is not adjustable. Ground Electrode Figure 7. [. . . ] recommends that you retain all receipts covering maintenance on the engine, But Kohler Co. cannot deny warranty solely for the lack of receipts or for your failure to assure that all scheduled maintenance was performed. may deny warranty coverage if the engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications. Call 1-800-544-2444, or access our website at: www. kohlerengines. com, for the names of the nearest service centers. [. . . ]