Cummins/Onan — Float-Level Check
Adjustments · Gasoline carburetor
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan NHC-NHCV, Cummins/Onan NHC-NHCV engine
Procedure
- Remove fuel line, air cleaner hose, governor linkage, and choke wires.
- Remove two carburetor mounting nuts and carburetor.
- Unscrew float bowl nut and remove main fuel adjustment assembly.
- Invert carburetor and check float surface nearest gasket is 1/8 ± 1/16 inch from gasket.
- Bend float tab as required.
- Reassemble, install, and test.
Specs & values
- Float surface to gasket: 1/8 ± 1/16 inch
Full service-parts list: Cummins/Onan NHC-NHCV →
Source: Cummins/Onan service 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.