DuroStar DS4000S User Manual page 13

14. Fuel Filter Cup
3. Fuel Gauge
4. Fuel Cap
16. Spark Plug
17. Muffler
11. Oil Fill and Dipstick - Use to add or check the oil.
12. Engine Switch – 3 Position Switch to "Start", "Run", or turn "Off" the generator.
13. Recoil Start – Easy Pull Recoil Start to start the engine without the electric start.
14. Fuel Filter Cup - Traps dirt and debris in gasoline before it enters the engine.
15. Fuel Valve - On/Off Valve that allows fuel into the engine.
16. Spark plug – Provides ignition to the engine.
17. Muffler – Reduces engine emissions and reduces noise.
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