Kohler Command CV17, CV18, CV20, CV22, CV25, CV26, CV730, CV740, CV745 Engine Service & Repair Manual (P/N TP-2450-B)

• Covers 1991–2005 Kohler Command CV17, CV18, CV20, CV22, CV25, CV26, CV730, CV740, and CV745 engines with vertical crankshaft configurations.
• Official publication P/N TP-2450-B, revised version.
• Features 12 detailed troubleshooting flow charts alongside 96 pages of technical specifications, exploded-view schematics, and sensor diagnostic testing procedures.
• Details the EFI system, mechanical governor adjustments, ignition modules, and internal engine component tolerances.
• Serves as the definitive reference for the V-twin engine line, documenting both carbureted and EFI fuel management architectures across all listed displacements.

Component and System Documentation

This manual details the disassembly, inspection, and reassembly processes for the Kohler Command V-twin engine series. Mechanics will find major chapters focusing on the lubrication system. Coverage includes oil pump specifications and cooler maintenance protocols, alongside extensive electrical system diagnostics. Technical content spans the complete fuel management spectrum. It details float circuits for Nikki and Keihin carburetors, fuel pump performance data, and the intricate sensor-based diagnostics required for electronic fuel injection systems used on late-model units. The documentation outlines strict OEM safety protocols, emphasizing the need to verify system depressurization before servicing high-compression EFI components to prevent personal injury or hardware damage.

Engine Specification and Testing Data

Accurate tolerances are critical for reliable professional rebuilds. Specifications provided include valve stem-to-guide running clearances and piston-to-cylinder bore tolerances. The manual lists essential torque settings for fasteners ranging from M4 to M14. Cylinder head bolt torque values are documented in a multi-stage sequence. Final-stage values reach 41.8 N·m (370 in. lb.). In the cylinder head specification table, intake valve clearance is listed at 0.038–0.076 mm. For EFI-equipped engines, the speed sensor air gap must be verified within a 1.25–1.75 mm range to function correctly. Spark plug torque is documented at 24.4–29.8 N·m (18–22 ft. lb.) for all models.