B48G — Use a volt-ohmmeter, such as the Simpson 270, when
For the B48G.
Procedure
- Alternator Stator .
- With the engine running, check the battery terminal
Source: manual:965-0757_Onan_B43E_spec_A-D_B43G_spec_A-D_B48G_spec_A-G_Engine_Service_manual_06-1988.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.