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Cummins/Onan — To use the electric starter,

For these Cummins/Onan models: EGMBT, EGMBT (P4500), EGMBU, EGMBU (P5000E), EGMBU (P5000e), P24500 (Spec A), P5000e (Spec A).

Applies to: Cummins Onan Egmbt, Cummins Onan Egmbu

Procedure

  1. 1. Open the fuel valve.
  2. 2. Pull the choke rod out to close the choke if the engine is cold.
  3. 3. Press and hold the Start/On/Off switch in the START position until the engine starts. The

Source: manual:914-0508 Onan EGMBT P24500 EGMBU P5000e (spec A) Portable Genset Service manual (10-2009).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.