Kohler Command 11 / 12.5 / 14 HP Service Manual (TP-2402)

• Official 110-page PDF Kohler publication TP-2402 documenting engine specifications and component service data for 1990–1995 Command 11, 12.5, and 14 HP horizontal crankshaft models, including electric and retractable start configurations.
• Provides the authoritative tolerances and clearances required for internal engine rebuilding, repair, and component-level diagnostic verification.
• Features over 70 exploded-view assembly diagrams, comprehensive torque charts, and wiring schematics for the 15-amp charging system, along with power and torque curves, fuel consumption charts, engine dimensional drawings, carburetor exploded views, and cylinder bore crosshatch diagrams.
• Covers component-specific maintenance for the Automatic Compression Release (ACR), hydraulic valve lifters, gerotor oil pumps, balance shafts, mechanical fuel pumps, retractable starters, and solenoid shift electric starters.
• Details workshop procedures including complete engine disassembly, systematic troubleshooting, special service tools usage, cylinder bore honing, valve seat reconditioning, camshaft end play shimming, and step-by-step reassembly.

Service and Diagnostic Content

This manual delivers detailed structural guidance for the entire engine assembly. Working on internal engine components carries inherent physical risks, so technicians should always observe standard workshop safety protocols and verify specifications before beginning any teardown. For the daily shop routine, having these exact factory specifications provides a distinct advantage: it prevents component binding during bench work and eliminates the trial-and-error approach to engine timing, effectively reducing costly shop comebacks. The documentation provides deep dives into air intake and cooling systems. It covers precise carburetor adjustment parameters and governor sensitivity tuning. Lubrication data outlines the full pressure oil system, relief valve settings, and pressure monitor switch diagnostics. On the electrical side, the documentation breaks down the electronic magneto ignition module alongside stator testing and Bendix drive starter maintenance procedures. Furthermore, it details step-by-step instructions for tasks that typically require expensive machine shop labor or professional repair facilities, such as reaming valve guides, cutting and lapping valve seats, and safely releasing powerful recoil spring tension.

Specification Highlights

Internal engine component specifications include piston ring end gaps, valve stem clearances, and crankshaft journal tolerances. Fastening torque data spans both metric and imperial applications. This includes critical values for the closure plate, cylinder head, and connecting rod fasteners. For example, cylinder head bolt torque is specifically listed at 40.7 N-m (30 lbf·ft) in the assembly data section. You will also find exact measurements like the 0.11–0.20 mm intake valve clearance and the 8.96 mm minimum intake valve lift directly within the cylinder head specification tables.