There are three ways that I recommend
1. RUN OUT OF FUEL (it is hard to get fuel all out but it can be done)
A. lower fuel tank to around an inch in bottom of tank. (so it won't take all day to run dry)
B. Run machine until it shuts down.
C. Shake machine to help all fuel get down to bottom of carburetor from tank and fuel line.
D. Put choke on and push primer bulb again.
E. Start machine again and keep doing it until machine will no longer run. I have seen some equipment run additional 5 minutes on choke after tank is dry! >>>> Hopefully you have run all the fuel out and it is now ready to store.
***Note*** this way is not recommended for generators!
2. LEAVE FUEL IN ALL YEAR ROUND (this is what I do)
A. Make sure you fill tank full and use high octane gas.
B. Run your machine every two months for ten minutes. (generators longer)
C. When the fuel in the tank gets below 1/2. Fill it up with fresh high octane fuel.
3. LEAVE FUEL IN ALL YEAR ROUND and Turn Fuel Off at Fuel Shut Off under Tank (if machine has one)
A. Make sure you fill fuel tank full of high octane gas.
B. Turn fuel off at shut on/off lever under tank (if equipped).
C. Run machine until it shuts down.
D. Shake machine to help all fuel get down to bottom of carburetor from fuel line.
E. Put choke on and push primer bulb again.
F. Start machine again and keep doing it until machine will no longer run.
*NOTE* Remember to use high octane gas and fuel stabilizer in all machines that sit more than being used. *** Fuel should not sit a machine for more than a year with out running it out of machine or at least run machine over the period of the year and keep adding fresh high octane for to tank. ***