Depends how you like to store stuff. When going in for long term
storage I usually run it to the end (with the choke) unit it cuts out
with stabil. I then drain the carb of any trace amounts of gas. I
pull the plug, clean it and spray a motor fog into the cylinder. Pull
it over a few times, put the plug back in. Spray any exposed metals
with a nice protective lubricant. Open the gas tank and let it
evaporate the little gas left. If its an older tank and made of steel
I spray the same protectant in the inside of the tank and put the cap
on. If its a 4 cycle motor its a good time to drain and replace the
oil too. Old oil tends to be acidic and can cause issues with the
seals later on.
That would be about it.
I never had a problem with any of my power equipment related to fuel.
2 4cycle snow blowers, 2 2 cycle snowblowers, 2 mowers (4 and 2 cycle),
1 4 cycle edger, 1 echo weedwacker, 1 honda generator, 2 spare honda 4
cycle motors, 1 honda powerwasher, 1 billy goat vacume. I know I know,
it sounds like a small engine repair shop, but I have allot to take