Kohler Engine Wiring Schematic | Free Wiring Diagram Variety of kohler engine wiring schematic. A wiring diagram is a simplified standard pictorial representation of an electrical circuit. It reveals the parts of the circuit as streamlined forms, and the power and also signal links between the devices. CH18-CH25, CH620-CH730, CH740, CH750 Service Manual PDF fileIf engine will be out of service for 2 months or more follow procedure below. 1. Add Kohler PRO Series fuel treatment or equivalent to fuel tank. Run engine 2-3 minutes to get stabilized fuel into fuel system (failures due to untreated fuel are not warrantable). 2. Change KOHLER COMMAND CH18 SERVICE MANUAL Pdf Download | View and Download Kohler Command CH18 service manual online. Liquefied Petroleum Gas (LPG) or LPG/Natural Gas (NG) Fueled. Command CH18 engine pdf manual download. Also for: Command ch20, Command ch23, Command ch25, Command ch640, Command ch730, Command ch740. Kohler Engine CH18 Parts Lookup by Model Enter your Kohler Engine model number below. Click the Search Button to See More Results. Parts lookup for Kohler Engine power equipment is simpler than ever. Enter your model number in the search box above or just choose from the list below.