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Old 09-06-2015, 07:13 AM   #1
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Always shut off fuel shutoff valve?

I have various mowers/blowers/etc., some which have fuel shutoff valves. Do you shut off this valve after each use? I usually shut it off BEFORE turning the mower off so that any excess gas in the carb gets burned off and doesn't gum up the carb. It makes logical sense in my head to do this, but is this proper/standard procedure, or is this overkill? What do you do?
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Old 09-06-2015, 07:23 AM   #2
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Never have (and I've been around for 70+ years). At the end of the season, I drain the tank and then run the engine dry.

But certainly what you are doing doesn't hurt it.
My electrical answers are based on 2014 NEC, you may have local amendments.

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Old 09-06-2015, 09:54 AM   #3
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No need to do it after every use.

After the last usage of the season, shut off the valve and then run the engine until it goes off. It does help to burn off as much remaining gas in the carburetor as possible before long term storage.

Finally suck out the remaining gas from the gas tank or pour in some Sta-Bil or similar gasoline preservative.
Stick to your lawn watering schedule until it really starts to pour. After the storm you have only the same number of rest days you always had and then you need to start watering again.
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Old 09-06-2015, 11:44 AM   #4
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I'd check the instructions and do what's suggested.
It's also insurance if the bowl float sticks down and gas continues to fill and overflow the carburetor and spill on the floor.
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
B. Franklin 1759

Last edited by Ron6519; 09-06-2015 at 11:48 AM.
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