Cummins/Onan Onan P4500i Inverter / P4500 — Draining the Float Bowl
Maintenance · Carburetor
For the Cummins/Onan Onan P4500i Inverter / P4500, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan P4500
Procedure
- Remove the engine service cover.
- Locate the drain hose extending from the bottom of the carburetor float bowl.
- Place the loose end of the hose into an approved gasoline container.
- Loosen the float bowl drain screw and allow the fuel to drain; tighten the drain screw.
- Route the drain hose between the air cleaner housing and the engine service cover and install the cover.
Full service-parts list: Cummins/Onan P4500 →
Source: Cummins/Onan operator'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.