Kohler K482, K532, K582, K662 Engines Service & Repair Manual (P/N TP-1288)

• Coverage: Applies only to the Kohler K361 single-cylinder, horizontal-crankshaft overhead-valve engine, with identification guidance for the oil-pan, clutch, pump, Quiet, electric-start, retractable-start, and rope-start configurations.
• Fuel and speed control: Covers side-draft carburetor reconditioning and adjustment, mechanical fuel-pump testing, gravity-feed applications, the optional thermo-electric automatic choke and shutdown solenoid, plus constant- and variable-speed governor setup.
• Electrical diagnosis: Includes battery-ignition fault isolation, static and timing-light procedures, component tests, 3 Amp, 3/6 Amp, and 15 Amp alternator systems, their wiring diagrams, and permanent-magnet starter service.
• Internal overhaul: Follows engine teardown, inspection, machining decisions, and reassembly for the cylinder head, valves, piston and rings, connecting rod, crankshaft, camshaft, tappets, bearings, balance gears, governor gear, cylinder block, and oil seals.
• Testing and specifications: Provides engine troubleshooting, crankcase-vacuum and compression testing, ACR inspection, parts-fitted and wear tolerances, torque tables, head-bolt sequence, clearance data, and special-tool drawings.
• Document identity: A 57-page PDF, Kohler Form No. TP-1288, issued October 1978 and revised February 1992, with Service Bulletins 142, 144, and 154 incorporated at the end.

Coverage and Identification

This Kohler service manual applies to the K361 only—not the K482, K532, K582, or K662 twin-cylinder engines. Its repair depth is best suited to qualified small-engine technicians or experienced rebuilders equipped for precision measurement, electrical testing, and machine-shop operations.

The identification section explains how the model, specification, and serial numbers are used, including suffix letters for the major equipment configurations. Its manufacturing-year code chart runs from 1969 through 1978 and explains the shared first-digit code used for 1975 and 1976. This matters when specification and serial data must be matched before repair parts are selected.

Diagnosis and System Service

The Engine Analysis section goes beyond a basic symptom list. It traces hard starting, power loss, overheating, backfiring, high-speed miss, erratic running, and failure to idle, then connects those symptoms to ignition, fuel, cooling, compression, valve, and load-related causes. Crankcase-vacuum testing includes the construction and use of a U-tube water manometer, while the compression-test chart separates ring, valve, head-gasket, and Automatic Compression Release faults.

Fuel-system coverage is specific to the adjustable side-draft carburetor. It addresses disassembly, cleaning, float inspection, reassembly, and final main-fuel, idle-fuel, and idle-speed adjustment. Separate diagnostics cover the optional automatic choke, fuel-shutdown control, and camshaft-driven mechanical fuel pump. The governor section distinguishes fixed constant-speed settings from throttle-controlled variable-speed operation and explains speed, sensitivity, linkage, and governor-arm adjustment.

Overhaul and Reassembly Detail

The overhaul chapters provide service-order teardown and inspection criteria rather than only exploded parts pictures. Cylinder-head work covers flatness, valve and seat condition, guide wear, spring inspection, and valve reconditioning. Piston and ring damage patterns are tied to lubrication, cooling, detonation, preignition, and abrasive contamination; the manual also covers service-size pistons and rings, crankpin inspection, undersize connecting rods, and cylinder deglazing or reboring.

Reassembly includes camshaft and balance-gear timing, end-play shimming, piston-ring orientation, connecting-rod match marks, bearing-plate installation, valve adjustment, governor setup, and oil-seal installation. Kohler tool Y-357 is identified for balance-gear timing, while dimensional drawings allow a seal sleeve and seal driver to be fabricated.

Diagrams, Updates, and Repair Limits

Named illustrations include the Side Draft Carburetor component drawing, Schematic of a Typical Battery Ignition System, 15 Amp System Wiring Diagram, Exploded View of Typical PM Starter, ACR Operation view, and Final Check for Crankshaft to Balance Gear Timing. The specifications section adds component-specific torque values, general fastener charts, wear limits, fitted clearances, and torque conversions.

Service Bulletin 144 distinguishes cylinder heads with and without the Teflon exhaust-valve seal and adds valve-guide replacement and finishing procedures. Bulletin 154 identifies rocker-arm housing gasket 45 041 14 as the replacement for gaskets 45 041 08 and 45 041 13, including the configuration-dependent fastener information.

The manual warns that improper flywheel removal can crack the flywheel or weaken the threaded crankshaft end; using the fins as leverage can fracture them. Bulletin 142 also explains that force applied to the Teflon seal body or spring will distort the exhaust-valve seal and cause failure.

Alternator service is limited to diagnosis and component replacement; the systems have no adjustments, their parts are not interchangeable, and Kohler does not recommend field repair. A worn or stuck ACR flyweight likewise requires camshaft replacement. This is a service and overhaul publication, not a replacement-parts catalog.

Before repair work, isolate the battery and spark-plug lead. The cooling shrouds must remain installed during operation because they direct airflow across the engine and prevent heat damage.