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Yamaha EF1000iS / EF4500iSE — Storage - drain the fuel

Maintenance · Fuel system

For the Yamaha EF1000iS / EF4500iSE, from the Yamaha owner's manual.

Before you start

  • Fuel is highly flammable and poisonous.

Procedure

  1. Turn engine switch to STOP.
  2. Remove fuel tank cap, extract fuel using hand siphon into approved container, reinstall cap.
  3. Turn fuel cock knob to ON.
  4. Start engine and let it run until it stops (approx. 20 minutes, unloaded).
  5. Remove front cover, drain fuel remaining in carburetor via drain screw on float chamber.
  6. Tighten drain screw.
  7. Turn engine switch to OFF, fuel cock knob to OFF.
  8. Install cover and tighten screws; tighten any loose screws/bolts/nuts.
  9. Store generator in a dry, well-ventilated place with cover on.

Source: Yamaha 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.

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