Cummins/Onan 5.0BF - 34 3E / S.OSF - 34 IE — Carburetor Float Adjustment

Adjustments

For the Cummins/Onan 5.0BF - 34 3E / S.OSF - 34 IE, from the Cummins/Onan service manual.

Applies to: Cummins/Onan 5.0BF - 34 3E, Cummins/Onan BF engine

Procedure

1. Invert float assembly and casting.
2. With float resting lightly against needle and seat, clearance between bowl cover gasket and free end of float should be 1/8 in.
3. If reset needed, bend float tangs near pin to obtain 1/8 in clearance.

Full service-parts list: Cummins/Onan 5.0BF - 34 3E →

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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