Kohler CH740 or CH1000 Engine Engine
The Kohler CH740 or CH1000 is a 2-cylinder air-cooled engine. It powers generator sets from Gas-KOHLER and Kohler, including the TP-6804, 14/20RES and RDC2 or DC2.
Also known as: Kohler CH740 or CH1000
Engine specifications
| Cylinders | 2 |
|---|
| Aspiration | air-cooled |
|---|
Generator sets powered by this engine
3Shared across brands: Gas-KOHLER, Kohler
Common problems
6- Fire
Cause: Battery short circuits can cause bodily injury and/or equipment damage.
Fix: Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (-) lead first when disconnecting the battery. Reconnect the negative (-) lead last when reconnecting the battery. - Generator produces low voltage output
Cause: Dirty air filter
Fix: Clean the air filter as per the instructions in the 'Air Cleaner Service' section. - Engine overheats
Cause: Coolant level is low or coolant is contaminated
Fix: Check and refill coolant if necessary. Refer to the 'Cooling System' section for details. - Engine does not start
Cause: Low oil pressure or oil level
Fix: Check and refill oil if necessary. Refer to the 'Oil Check' section for details. - Bodily injury and/or equipment damage
Cause: Battery short circuits
Fix: Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. Never connect the negative (--) battery cable to the positive (+) connection terminal of the starter solenoid. Do not test the battery condition by shorting the terminals together. - Battery short circuits
Fix: Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery.
Compiled from service & troubleshooting documentation across every generator set that uses the Kohler CH740 or CH1000.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | KOHLER OE | | — | 1200 hr | find |
| Fuel filter | KOHLER OE | | — | 1200 hr | find |
| Oil filter | KOHLER OE | | — | 1200 hr | find |
| Belt | Inspect belts for wear and replace as necessary. | | — | 2400 hr | find |
| Coolant | DOT5.1 | 10.0 L | — | 3600 hr | |
| Oil | 5W-40 | 4.5 L | — | 1200 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 CH740 or CH1000 engine?
The Kohler CH740 or CH1000 powers 3 generator set(s), including Gas-KOHLER TP-6804, Kohler 14/20RES, Kohler RDC2 or DC2.
How often should you change the oil in the Kohler CH740 or CH1000?
The Kohler CH740 or CH1000 oil change interval is every 1200 hours.
What is a common problem with the Kohler CH740 or CH1000 engine?
A commonly reported issue on generators using the Kohler CH740 or CH1000 is: Fire. Cause: Battery short circuits can cause bodily injury and/or equipment damage.. Fix: Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (-) lead first when disconnecting the battery. Reconnect the negative (-) lead last when reconnecting the battery..