Section 1 Safety and General Information Unleaded gasoline is recommended as it leaves less combustion chamber deposits and reduces harmful exhaust emissions. Leaded gasoline is not recommended and must not be used on EFI engines, or on other models where exhaust emissions are regulated. Gasoline/Alcohol blends Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved as a fuel for Kohler engines. Other gasoline/alcohol blends are not approved. 1 Gasoline/Ether blends Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline blends (up to a maximum of 15% MTBE by volume) are approved as a fuel for Kohler engines. Other gasoline/ether blends are not approved.
Periodic Maintenance WARNING: Accidental Starts! Disabling engine. Accidental starting can cause severe injury or death. Before working on the engine orequipment, disable the engine as follows: 1) Disconnect the spark plug lead(s). 2) Disconnect negative (-) battery cable from battery. Maintenance Schedule These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal tune-up. 1 Perform these maintenance procedures more frequently under extremely dusty, dirty conditions. 1.5 Frequency Maintenance Required Refer to: Daily or Before Starting Engine • Fill fuel tank. • Check oil level. • Check coolant level.
• Check air cleaner for dirty1, Loose, or damaged parts. • Check the screen, radiator, and cooling areas, clean as necessary1. Section 5 Section 6 Section 7 Section 4 Section 7 Every 100 Hours • Clean and check cooling areas1. Section 7 Annually or Every 200 Hours • Change oil and oil filter (more frequently under severe conditions). • Check spark plug condition and gap. • Change fuel filter (carbureted models). Section 6 Section 5 Section 8 Every 250 Hours • Replace air cleaner element and check inner element1. Section 4 Annually or Every 500 Hours • Replace spark plugs. Section 8 Every 2 Years or Every 1000 Hours • Change engine coolant.
Section 7 Every 1500 Hours • Replace fuel filter1 (EFI engines). Section 5B