Yamaha EF1000iS / EF2000iS — Storage: drain the fuel
Maintenance · Fuel system
For the Yamaha EF1000iS / EF2000iS, from the Yamaha owner's manual.
Before you start
- Fuel is highly flammable and poisonous.
Procedure
- Turn the engine switch to STOP
- Remove the fuel tank cap and extract the fuel into an approved gasoline container using a hand siphon, then reinstall the cap
- Turn the engine switch to ON
- Turn the fuel tank cap air vent knob and fuel cock knob to ON
- Start the engine and let it run until it stops (engine stops in approx. 20 minutes by running out of fuel)
- Remove the screws and cover
- Drain the fuel from the carburetor by loosening the drain screw on the carburetor float chamber
- Turn the engine switch to OFF
- Turn the fuel cock knob to OFF
- Tighten the drain screw
- Install the cover and tighten the screws
- Turn the fuel tank cap air vent knob to OFF
- Store the generator in a dry, well-ventilated place, with the cover placed over it
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.