Generator cranks but will not start, no error code displayed

Safety first: Ensure the generator is in OFF mode and battery negative is disconnected while inspecting components.

• Fuel check: Confirm there is adequate fuel in the tank and that the fuel shutoff valve is fully open.
• Air filter: Remove the air filter element and inspect. If heavily soiled, replace with a DuroMax air filter. For a quick test, try starting briefly with the filter removed (do not run long‑term without a filter).
• Spark plug: Remove the spark plug, clean or replace it, and set the gap to the specification in the manual. Ensure the plug wire is firmly attached.
• Choke position: For manual choke, ensure it is fully closed for cold start and gradually opened as the engine fires. For automatic choke, verify linkage moves freely.
• Attempt restart: Reconnect battery negative and attempt to start. If it still will not start, further diagnosis of fuel delivery and ignition timing is required.