Cummins/Onan — Manual Choke Operation
Operation · Carburetor choke
From a Cummins/Onan owner's manual covering: Onan P4500iDF, P4500iDF, P4500iDF Inverter. Check it applies to your exact model before use.
Applies to: Cummins/Onan P4500iDF, Cummins/Onan P4500iDF Inverter
Before you start
- If the choke does not open automatically, push the choke manually to open it.
Procedure
- Remove the engine service cover.
- Locate the small black choke lever on top of the carburetor.
- To close the choke for cold starting, use a screwdriver to push the black lever toward the front of the generator.
- Start the generator; the start-up sequence should automatically open the choke.
Tools required
- Screwdriver Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan P4500iDF →, Cummins/Onan P4500iDF Inverter →
Source: Cummins/Onan owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.