2000–2007 Kohler Command CV17-750 Engine Service Manual (P/N TP-2450-C)

This Kohler Command CV17-750 service manual (Form No. TP-2450-C) provides factory specifications and diagnostic procedures for the 2000–2007 vertical-crankshaft engine lineup. Coverage spans carbureted engines and the CV26/CV745 electronic fuel injection (EFI) configurations.

Text search, navigation, and diagrams: Main text is searchable, with bookmarks for the contents and every main section. The two EFI wiring sheets and diagnostic-flowchart labels are not searchable; some tables also have limited text search. Small wiring labels require zooming.

• Engine repair: Complete disassembly, cylinder-head and valve reconditioning, piston and ring inspection, camshaft timing, and engine reassembly.

• Carburetors and governor: Nikki and Keihin overhaul procedures, accelerator-pump repair, choke service, and standard or governed-idle adjustments.

• EFI diagnostics: Fuel-pressure, injector, and sensor tests; ECU blink-code troubleshooting; and separate throttle-position-sensor initialization procedures.

• Ignition and charging: Fixed-timing CD and SMART-SPARK diagnosis, stator and rectifier-regulator testing, and system-specific wiring diagrams.

• Starter repair: Retractable-starter rebuilding, inertia-drive service, and Nippondenso or Delco-Remy solenoid-shift starter overhaul and testing.

• Lubrication and cooling: Gerotor oil-pump inspection, Oil Sentry testing, oil-cooler service, and standard, commercial-mower, or heavy-duty air-cleaner maintenance.

• Service specifications: Component torque tables, fluid capacities, wear limits, hydraulic-lifter clearances, electrical test values, and engine dimensional drawings.

The internal repair and electrical diagnosis sections suit technicians and experienced engine rebuilders who can use precision measuring tools and electrical test equipment.

Carburetor and Governor Variants

The carburetor sections distinguish Nikki and Keihin single-barrel units from the CV750's Keihin BK two-barrel design. Float inspection, fuel shut-off solenoid testing, accelerator-pump rebuilding, and self-relieving choke repair receive separate procedures. The Keihin BK two-barrel exploded view identifies its individual jets and float components.

Governor coverage includes initial adjustment, sensitivity checks, commercial-mower controls, and spring-location charts for the different cross-shaft designs. EFI governor setup has its own procedure.

EFI Fault Tracing and TPS Initialization

The plastic-cased electronic control units (ECUs) use 24-pin MSE 1.0 or 32-pin MSE 1.1 connections and are not interchangeable. Each has its own connector assignments and applicable diagnostic procedures; TPS Auto-Learn applies specifically to MSE 1.1.

The two EFI wiring schematics, ECU pin-location views, and Bosch EFI Diagnostic Flow Diagram support checks of the harness, relay, injectors, and sensors. ECU pin-out data and multimeter resistance specifications help separate wiring faults from component failures before replacement.

Fuel-system coverage distinguishes internal and external pumps and pressure regulators. Oxygen-sensor testing includes a cutaway view and grounding checks. The tools section identifies EFI Service Kit 24 761 01-S.

The manual warns that connecting or disconnecting EFI wiring with the ignition on can send a damaging voltage spike through the ECU.

Internal Engine Inspection and Reconditioning

Crankcase-vacuum and cylinder-leakdown tests support diagnosis before teardown, including engines with Automatic Compression Release. Inspection covers crankshaft journals, piston-to-bore clearance, ring gaps, valve guides, and valve seats.

CV25 POWER-BORE cylinders: The honing and resizing procedures apply to cast-iron sleeves. Plated POWER-BORE cylinders require a replacement miniblock or short block when damaged or outside specification.

Build differences: CV22 specifications distinguish the 624 cc and 674 cc versions. Cylinder heads secured by bolts and those using studs and nuts have separate two-stage tightening requirements.

Camshaft end-play checks, cylinder-bore crosshatch illustrations, valve specification tables, and cylinder-head and intake-manifold torque sequences support rebuild work.

Hydraulic-lifter preparation addresses trapped oil that can bend push rods or break rocker arms during assembly.

Ignition, Charging, and Starter Service

SMART-SPARK testing distinguishes analog ASAM and digital DSAM modules and identifies tester 25 761 40-S for both. Charging-system diagrams cover regulated alternators and the unregulated charging/lighting configuration.

Starter coverage extends to brush replacement, armature inspection, drive-pinion service, and solenoid pull-in and hold-in tests. The retractable-starter section covers the rope, pawls, pulley, and spring-and-keeper assembly.

Oil-System Service and Repair Limits

Gerotor-pump service distinguishes the original pressure-relief arrangement from the later, nonserviceable one-piece valve. Crankcase-breather inspection, oil-separator details, and Oil Sentry pressure-switch testing are also included.

Review the manufacturer's safety precautions and testing requirements before teardown or maintenance, particularly for pressurized EFI fuel, ignition components, and the retractable starter's spring.

Printable PDF and Included Pages

This English-language manual is supplied as one printable 217-page PDF: 214 section pages, including the two unnumbered EFI wiring sheets, plus one front cover, one contents page, and one publication back cover. All are included in the total.