Cummins/Onan — Nikki Carburetor Float Setting
Adjustments
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Procedure
- Remove carburetor from generator set per Carburetor Overhaul instructions.
- Adjust float by bending tab and checking float position.
- Measure from carburetor housing to far (bottom) side of float.
- Float adjustment must be 0.59 to 0.63 inch (15 to 16 mm).
Tools required
- Measuring device Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Float setting: 0.59 to 0.63 in (15 to 16 mm)
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.