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GB390T-2-C1 Engine

The GB390T-2-C1 is a 0.39 L 4-stroke ohv engine. It powers generator sets from Champion, including the 201169 - 6500W Tri-Fuel Electric Start Generator.

Also known as: GB390T-2-C1

0.389 L

Displacement

On this pageSpecs Generator sets Maintenance FAQ

Engine specifications

Displacement	0.389 L
Aspiration	4-Stroke OHV

Generator sets powered by this engine

Champion 201169 - 6500W Tri-Fuel Electric Start Generator

Common problems

Repeated circuit breaker tripping
Cause: Overload
Fix: Review load and adjust. See “Connecting Electrical Loads.”
Generator cannot supply enough power or overheating.
Cause: Generator is overloaded.
Fix: Review load and adjust. See “Connecting Electrical Loads.”
Faulty power cords or device
Fix: Check for damaged, bare or frayed wires. Replace defective device.
Engine will not start.
Cause: No fuel.
Fix: Add fuel.
Engine will not start electrically.
Cause: Generator battery is dead.
Fix: Recharge generator battery.
Engine starts but runs roughly.
Cause: Choke lever in the wrong position.
Fix: Move choke lever to the RUN position.
Engine shuts down during operation.
Cause: Out of fuel.
Fix: Fill fuel tank.
Engine is running but no AC output.
Cause: Poor cord connection.
Fix: Check all connections.
Engine hunts or falters
Cause: Engine governor defective
Fix: Contact the help line
Circuit breaker still too hot
Fix: Let unit sit for 5 mins
Choke lever in wrong position
Fix: Move choke lever to the RUN position
Carburetor is dirty and running lean
Fix: Contact the help line
Both CO Shield® LEDs not blinking 10 times upon start up.
Cause: Starting the generator within 1 minute after being manually shutoff, not a CO shutoff event.
Fix: Wait 1 minute before trying to restart the generator. The LEDs should then blink ten (10) times.

Compiled from service & troubleshooting documentation across every generator set that uses the GB390T-2-C1.

Maintenance schedule

Item	Spec	Part #	Interval
Air filter	Cleaning the Air Filter	—
Fuel filter	Clean/adjust spark plug	—	100 hr
Oil filter	Replace oil drain hose onto plug bracket and slide spring clamp back into position.	—	50 hr
Battery	Replace fuel line*	—	730 hr
Belt	Replace the spark arrestor if it is damaged.	—	250 hr
Coolant	Clean spark arrestor	—	100 hr
Coolant filter		—
Oil	Change oil when the engine is warm.	—	50 hr
Spark plug	Clean combustion chamber*	—	365 hr

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

Common questions

What is the displacement of the GB390T-2-C1?

The GB390T-2-C1 has a displacement of 0.389 liters.

Which generators use the GB390T-2-C1 engine?

The GB390T-2-C1 powers 1 generator set(s), including Champion 201169 - 6500W Tri-Fuel Electric Start Generator.

How often should you change the oil in the GB390T-2-C1?

The GB390T-2-C1 oil change interval is every 50 hours.

What is a common problem with the GB390T-2-C1 engine?

A commonly reported issue on generators using the GB390T-2-C1 is: Repeated circuit breaker tripping. Cause: Overload. Fix: Review load and adjust. See “Connecting Electrical Loads.”.