Cummins/Onan NH-MS/1 / NH-S/1 — Float Level Check
Adjustments · Carburetor
For the Cummins/Onan NH-MS/1 / NH-S/1, from the Cummins/Onan service manual.
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Before you start
- If the carburetor uses an internally spring loaded fuel inlet valve, the float surface must be 1/8 ± 1/16 inch from the gasket with the full weight of the float compressing the spring.
Procedure
- Unscrew the float bowl nut and remove the entire main fuel assembly from the float bowl.
- Invert the carburetor.
- Check that the float surface nearest the gasket is 1/8 ± 1/16 inch from the gasket.
- Bend the float tab as required to produce this distance.
Specs & values
- Float to gasket dimension 1/8 ± 1/16 inch
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.