Kohler Command Pro PCH680 PCH740 Propane Electronic Fuel Injection (EFI) Factory Service Repair Manual

Since 1873, Kohler Co. has been improving the level of gracious living by providing exceptional products and services for our customers’ homes and their lifestyles. We believe better business and a better world go hand-in-hand. Fueled by the passion of more than 40,000 associates worldwide, we strive to enhance the quality of life for current and future generations through design, craftsmanship and innovation.

• Fuel efficiency: The closed-loop EFI system uses an oxygen sensor to maintain an optimal air-fuel mixture, potentially saving commercial operators hundreds of dollars per year on fuel.
• Environmental benefits: Propane EFI engines burn cleaner, producing over 50% fewer hydrocarbon emissions than comparable carbureted gasoline engines, which can help businesses secure “green” contracts.
• Reliable starting: The EFI system eliminates the need for manual choking or priming, allowing for quick, car-like starting.
• Durability: As part of the Command PRO series, these engines are built for commercial applications and come with a 3-year, unlimited-hour commercial limited warranty.
• Reduced maintenance: Without a carburetor, there’s no need for fuel stabilizers, and you don’t have to worry about the gumming and corrosion caused by ethanol-blended gasoline. 

• Fuel system problems: Low or no fuel pressure from a faulty pump can cause the engine to run lean, resulting in poor performance or a no-start condition. Overly rich running can occur if the regulator’s vent becomes blocked.
• Ignition issues: Problems with the ignition system, such as a failing ignition coil, can lead to rough running, weak or inconsistent spark, or a complete no-start condition.
• Engine overheating: Can be caused by debris-clogged cooling fins, low oil levels, or excessive workload.
• Sensor failure: As with any EFI system, a failing oxygen sensor or other sensors can disrupt the closed-loop system, affecting performance.
• Fuel regulator issues: Kohler recommends draining the fuel regulator of any deposits every 500 hours or annually to prevent performance problems. 

• Seven States Supply: Offers the new Kohler PCH740-3023, a 25 HP Command PRO propane EFI engine.
• Rehlko Engines: Features product pages for the Command PRO EFI Propane PCH680 and PCH740, allowing you to find a local dealer.
• eBay: A source for both new and used engines and parts for the PCH series.
• Jacks Small Engines: Provides parts diagrams and the ability to order individual OEM parts, such as sensors and fuel filters, for PCH680 and PCH740 models.
• Kohler authorized dealers: Visit the KohlerEngines.com website or contact Kohler directly to find an authorized dealer for genuine parts and service.