OWNER’S MANUAL - Models K241, K301, K321 & K341 - Operating & Maintenance Instructions

Oct 23, 2026

OWNER’S MANUAL for Kohler four-cycle, single-cylinder, air-cooled engines covering models K241, K301 (10–12 hp) and K321, K341 (14–16 hp). Provides operating, servicing, and maintenance guidance with emphasized safety precautions, including warnings about rotating parts, explosive fuel and gas, electrical shock, and hot engine components. Includes California Proposition 65 exhaust warning and core maintenance topics such as correct oil selection, API service classes, and viscosity grading by temperature range.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages16

Reading Time40 min

AccessFree to download

Safety Precautions

Rotating Parts!

Explosive Fuel!

Electrical Shock!

Hot Parts!

California Proposition 65 Warning

Accidental Starts!

Lethal Exhaust Gases!

Explosive Gas!

Oil Recommendations

Oil Type

Recommended SAE Viscosity Grades

# OWNER’S MANUAL MODELS K241,K301 (12 hp) (10 hp) K321,&K341 (14 hp) (16 hp) # operating&maintenanceinstructions Congratulations-You have selected a fine four-cycle,single cylinder,air-cooled engine.Kohler designs longlife strength and on-the-job durability into each engine.…making a Kohler engine dependable...dependabilityyou can count on.Here are some reasons why: ·Kohler engines are easy to service.All routine service areas (like the points,condenser,air cleaner,sparkplug,and carburetor)are easily and quickly accessible. ·Parts subject to the most wear and tear (like the cylinders,crankshafts,and camshaft)are made fromprecision formulated cast iron.Because the cast iron cylinders can be rebored,these engines can last evenlonger. ·Every Kohler engine is backed by a worldwide network of over 10,000 distributors and dealers.Servicesupport isjust a phone call away.Cal 1-800-544-2444(U.S.&Canada)for Sales &Service assistance. To keep your engine in top operating condition,follow the maintenance procedures in this manual ## Safety Precautions To insure safe operations please read the following statements and understand their meaning.Also refer to your equipment owner's manual for other important safety information.This manualcontains safety precautions which are explained below.Please read carefully. WARNING Warning is used to indicate the presence of a hazard that can cause severe personal injury,death,or substantial property damage if the warning is ignored. CAUTION Caution is used to indicate the presence of a hazard that will or can cause minor personal injuryor property damage if the warning is ignored. NOTE Note is used to notify people of installation,operation,or maintenance information that isimportant but not hazard-related. ## For Your Safety! These precautions should be followed at all times.Failure to follow these precautions could resultin injury to yourself and others. Rotating Parts can cause severeinjury. ### Rotating Parts! Explosive Fuel! Gasoline is extremely flammableand its vapors can explode ifignited.Store gasoline only inapproved containers,in wellventilated,unoccupied buildings,away from sparks or flames.Do notfill the fuel tank while the engine ishot or running,since spilled fuelcould ignite if it comes in contactwith hot parts or sparks fromignition.Do not start the enginenear spilled fuelNever usegasoline as a cleaning agent. Keep hands,feet,hair,and clothingaway from all moving parts toprevent injury.Never operate theengine with covers,shrouds,orguards removed. | !CAUTION | | --- | | | | Electrical Shock can cause injury.
Do not touch wires while engine is
running. | ### Electrical Shock! Never touch electrical wires orcomponents while the engine isrunning.They can be sources ofelectrical shock. Stay away while engine is inoperation. ### Hot Parts! Engine components can getextremely hot from operation.Toprevent severe burns,do not touchthese areas while the engine isrunning-or immediately after it isturned off.Never operate theengine with heat shields or guardsremoved. ## CaliforniaProposition 65 Warning Engine exhaust from this productcontains chemicals known to theState of California to causecancer,birth defects,or otherreproductive harm. | WARNING | | --- | | ☰☰☰ | | Accidental Starts can cause
severe injury or death.
Disconnect and ground spark plug
lead before servicing. | | !WARNING | | --- | | | | Carbon Monoxide can cause
severe nausea,fainting or death.
Do not operate engine in closed or
confined area. | | !WARNING | | --- | | | | Explosive Gas can cause fires and
severe acid burns.
Charge battery only in a well
ventilated area.Keep sources of
ignition away. | ### Accidental Starts! Before servicing the engine orequipment,always disconnect thespark plug lead to prevent theengine from starting accidentally.Ground the lead to prevent sparksth

FAQs

What engine safety warnings are emphasized in this manual?

The manual warns about hazards from rotating parts, explosive fuel, electrical shock, and hot engine parts. It also highlights lethal carbon monoxide exposure and risks related to explosive gases from batteries.

How should gasoline be stored and handled according to the safety precautions?

Gasoline must be stored in approved containers in well-ventilated, unoccupied buildings away from sparks or flames. The manual also instructs not to fill the fuel tank while the engine is hot or running and not to start near spilled fuel.

What oil type and viscosity guidance does the manual provide?

Use high-quality detergent oil of API service class SG or SH. Select viscosity based on the expected air temperature before the next oil change using the recommended SAE viscosity grades table.

Oct 23, 2026

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