Cummins/Onan 5.5 NH / 6.5 NH — Choke Adjustments
Adjustments
For the Cummins/Onan 5.5 NH / 6.5 NH, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan NH engine
Before you start
- The choke cover gets very hot during normal operation and can cause serious burns if touched. Do not touch the choke cover while the set is operating.
Procedure
- Loosen the two mounting screws and rotate the choke cover until the correct setting is attained.
- Check the setting by starting the engine and observing its operation.
- Retighten the mounting screws after adjustment.
Specs & values
- 58°F (14°C) closed; 66°F (19°C) 1/4 open; 72°F (22°C) 1/2 open; 76°F (24°C) 3/4 open; 83°F (28°C) open
Source: Cummins/Onan operator'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.