HP 18-26 4

Electric

Fuel

Pump

Oil Filter

Oil Cooler

Starter

Rectifier-Regulator

Side Oil Drain Plugs

Figure 1. Typical Command Horizontal Shaft Engine (CH18-25).

Throttle Body Intake Manifold

Ignition Coil

Fuel Injectors

Ignition Coil

Oil Filter

Oil Cooler

Rectifier-Regulator

Figure 2. CH26 Command Horizontal Shaft Engine.

Contents

Page Safety Precautions California Proposition 65 Warning Safety Precautions (Cont.) Page Oil Recommendations Oil Type Fuel Recommendations General Recommendations Fuel Type Engine Identification Numbers Pre-StartChecklist Cold Weather Starting Hints Starting Stopping Operating Maintenance Schedule Check Oil Level Oil Sentry™ Change Oil and Filter, Service Oil Cooler Service Precleaner and Air Cleaner Element Ignition System Check Spark Plugs Battery Charging Fuel System Fuel Filter Fuel Line CH18-25Carburetor Troubleshooting and Adjustments Troubleshooting Adjust Carburetor CH26 Electronic Fuel Injection (EFI) System Adjustment – EFI Throttle Body Troubleshooting Storage Parts Ordering Major Repair Model Designation Specifications LIMITED 2 YEAR COMMAND ENGINE WARRANTY KOHLER CO FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS LIMITED WARRANTY UTILITY AND LAWN AND GARDEN ENGINES