[. . . ] Carbon monoxide is odorless, colorless, and can cause death if inhaled. Before working on engine or equipment, disable engine as follows: 1) Disconnect spark plug lead(s). Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. [. . . ] Carburetor Icing NOTE: Running engine with cover positioned for cold weather operation in normal conditions can damage engine. Carburetor icing can take place when certain combinations of temperature and humidity exist. Result of carburetor icing is rough running at idle or low speed as well as black or white smoke. To reduce likelihood of carburetor icing, air cleaner cover can be rotated to draw warmer air from muffler side. For cold weather operation, position air cleaner cover with snowflake decal out. Before working on engine or equipment, disable engine as follows: 1) Disconnect spark plug lead(s). Normal maintenance, replacement or repair of emission control devices and systems may be performed by any repair establishment or individual; however, warranty repairs must be performed by a Kohler authorized dealer found at KohlerEngines. Every 200 Hours² Check and adjust valve clearance when engine is cold. Check fuel filters (tank outlet filter and in-line filter) and clean or replace if needed (if equipped). 1 Perform these procedures more frequently under severe, dusty, dirty conditions. Check Oil Level NOTE: To prevent extensive engine wear or damage, never run engine with oil level below or above operating range indicator on dipstick. Oil Recommendations We recommend use of Kohler oils for best performance. Other high-quality detergent oils (including synthetic) of API (American Petroleum Institute) service class SJ or higher are acceptable. Reinsert dipstick into tube; rest on oil fill neck; turn counterclockwise until cap drops down to lowest point of thread leads; do not thread cap onto tube. Oil SentryTM (if equipped) This switch is designed to prevent engine from starting in a low oil or no oil condition. Gasoline is extremely flammable and its vapors can explode if ignited. [. . . ] Run engine 2-3 minutes to get stabilized fuel into fuel system (failures due to untreated fuel are not warrantable). Troubleshooting Do not attempt to service or replace major engine components, or any items that require special timing or adjustment procedures. Engine Specifications Model Bore Stroke Displacement Oil Capacity Spark Plug Maximum Angle of Operation (Refill) Gap (@ full oil level)* 0. [. . . ]