| Every 25 hours | Air Filter | Every 25 hours or annually, whichever comes first: service/replace the precleaner if equipped, or replace the air cleaner element if no precleaner is fitted. If a precleaner IS fitted, replace the element every 100 hours or annually. Service more often under severe, dusty or dirty conditions. The paper element cannot be blown out with compressed air. |
| Every 100 hours | Engine Oil & Filter | Change the oil and filter every 100 hours or annually, whichever comes first. There is no extended interval for the Courage series - neither Courage manual revision lists a 300 hour option. Oil: Kohler oils recommended, or any high-quality detergent oil (including synthetic) of API service class SJ or higher; 5W-30, 10W-30 or SAE 30 by air temperature. Capacity 1.6 U.S. qt (1.5 L). Oil filter 52 050 02-S. Change more often under severe, dusty or dirty conditions. |
| Every 100 hours | Fuel Filter | Replace every 100 hours. Kohler also lists a 100 hour check that all fasteners are in place and components are properly secured. |
| Every 100 hours | Cooling System | Every 100 hours or annually: remove the cooling shrouds and clean the cooling areas. |
| Every 200 hours | Valve Clearance | Have the valve lash checked and adjusted every 200 hours. Kohler marks this as a job for an authorized dealer. |
| Every 500 hours | Spark Plug | Replace the spark plug and set the gap every 500 hours. Gap 0.030 in. (0.76 mm); torque to 20 ft-lb (27 N-m). The OEM part number is not stated in the owner manual. |