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Home›Engines›Kohler K618-2

Kohler K618-2 Engine

The Kohler K618-2 is a 2-cylinder engine. It powers generator sets from Kohler, including the K618.

Also known as: Kohler K618-2

2
Cylinders
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Engine specifications

Cylinders2

Generator sets powered by this engine

1
Kohler K618

How to read your Kohler engine serial & model number →

Common problems

6
  • TOO MUCH FUEL
    Cause: 1. Overchoking, flooded 2. Restricted air intake 3. Carburetor set wrong 4. Carburetor malfunctioning 5. Wrong carburetor 6. Choke left on
  • POOR IGNITION
    Cause: 1. Plug wet 2. Plug gap incorrect 3. Plug carbon fouled 4. Wrong plug 5. Breaker points dirty or bad 6. Point gap wrong 7. Timing wrong 8. Condenser weak
  • POOR COMPRESSION
    Cause: 1. Spark plug loose 2. Head loose 3. Head gasket leaking 4. Piston rings sticking 5. Cylinder badly worn 6. Burned piston
  • NO IGNITION SPARK
    Cause: 1. Switch turned off 2. Leads disconnected or broken 3. Bad plug 4. Ignition switch faulty 5. Breaker points oxidized 6. Breaker points stuck 7. Condenser faulty 8. Ignition coil faulty
  • NO FUEL
    Cause: 1. Tank empty 2. Fuel valve turned off 3. Tank vent closed or plugged 4. Line disconnected 5. Line kinked, plugged 6. Filter, screens blocked 7. Impulse tube off or plugged
  • INCORRECT FUEL
    Cause: 1. Stale fuel - won't vaporize 2. Air leaks - loose components 3. Improper fuel and/or mixture 4. Carburetor set wrong 5. Fuel lines restricted 6. Exhaust port blocked 7. Vapor lock

Compiled from service & troubleshooting documentation across every generator set that uses the Kohler K618-2.

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterRemove carbon from combustion chamber—75 hr
Fuel filterClean or replace fuel filter—150 hr
Oil filterReplace oil filter—50 hr
BatteryCheck battery connections, clean terminals if necessary—150 hr
BeltCheck belt tension and adjust as necessary—50 hr
CoolantClean or replace coolant filter—100 hr
Coolant filter—
OilChange oil and filter—50 hr
Spark plugCheck condition and reset gap or replace with new plug—75 hr

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

Which generators use the Kohler K618-2 engine?

The Kohler K618-2 powers 1 generator set(s), including Kohler K618.

How often should you change the oil in the Kohler K618-2?

The Kohler K618-2 oil change interval is every 50 hours.

What is a common problem with the Kohler K618-2 engine?

A commonly reported issue on generators using the Kohler K618-2 is: TOO MUCH FUEL. Cause: 1. Overchoking, flooded 2. Restricted air intake 3. Carburetor set wrong 4. Carburetor malfunctioning 5. Wrong carburetor 6. Choke left on.