Cummins/Onan 6.5NH - 3CR / 6000 A — Carburetor Removal and Disassembly (Gasoline)

Repair & overhaul

For the Cummins/Onan 6.5NH - 3CR / 6000 A, from the Cummins/Onan service manual.

Applies to: Cummins/Onan NH engine

Procedure

1. Remove the fuel line, air cleaner hose, governor linkage and choke wires.
2. Remove the two carburetor mounting nuts and remove the carburetor.
3. If equipped with an automatic choke, remove the two screws fastening the choke and remove the assembly.
4. Remove the main jet assembly and bowl.
5. Remove the float pin and float.
6. Lift out the fuel inlet valve and unscrew the valve seat.
7. Remove the no load adjusting needle.
8. Remove the throttle plate screws and plate; pull out the throttle shaft.
9. Remove the choke plate screws and plate; pull out the choke shaft.

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.

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