Cummins/Onan — Automatic choke adjustment, beginning Spec F
Adjustments · Sisson choke
From a Cummins/Onan owner's manual covering: 10CW-150R, LOCW-150 R/, LOCW-3R/12 F. Check it applies to your exact model before use.
Applies to: Cummins/Onan 10CW-150R, Cummins/Onan Spec A, Cummins/Onan Spec B, Cummins/Onan Spec C, Cummins/Onan Spec D, Cummins/Onan Spec E, Cummins/Onan Spec F, Cummins/Onan Spec G
Procedure
- Loosen carburetor choke arm on its shaft.
- Slip choke assembly cover upward to remove it.
- Insert an 8 penny nail or 1/8 inch rod through aligning holes of solenoid armature and core.
- Tie armature firmly against core.
- Set choke valve plate fully closed and tighten choke arm on shaft.
- Remove alignment nail and untie armature; replace cover.
Tools required
- 8 penny nail or 1/8 inch rod Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan 10CW-150R →, Cummins/Onan Spec A →, Cummins/Onan Spec B →, Cummins/Onan Spec C →, Cummins/Onan Spec D →, Cummins/Onan Spec E →, Cummins/Onan Spec F →, Cummins/Onan Spec G →
Source: Cummins/Onan owner's 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.