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#4586078 - 11/26/17 08:05 PM Proper Generator Shut Down
SavagePatch Offline


Registered: 05/06/15
Posts: 571
Loc: California
For a generator that's only used during power outages and is stored the rest of the time what is the proper way to shut them down?

Turn the key to OFF and kill it or turn the fuel cock off and let it starve and die?

Thanks in advance!

Fuel tank is 5g capacity and filled with Chevron 91 w/ Stabil 360 additive.


Edited by SavagePatch (11/26/17 08:15 PM)
Edit Reason: Fuel

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#4586083 - 11/26/17 08:11 PM Re: Proper Generator Shut Down [Re: SavagePatch]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2740
Loc: Wet side WA
If you're not going to empty the tank let the generator run it dry.
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#4586085 - 11/26/17 08:12 PM Re: Proper Generator Shut Down [Re: SavagePatch]
MadAmos Offline


Registered: 04/12/09
Posts: 26
Loc: California
Fuel off let it run till it starts to die then full choke to empty the carb.
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#4586095 - 11/26/17 08:19 PM Re: Proper Generator Shut Down [Re: SavagePatch]
BrocLuno Offline


Registered: 09/06/15
Posts: 5514
Loc: Kalifornia Kollective
Turn fuel off and let it die on it's own. I would not use choke as if fuel there, will go rich and wash cylinder walls ...
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4586106 - 11/26/17 08:38 PM Re: Proper Generator Shut Down [Re: MadAmos]
Padawan Offline


Registered: 08/24/08
Posts: 333
Loc: NJ
Originally Posted By: MadAmos
Fuel off let it run till it starts to die then full choke to empty the carb.


This is the procedure I follow, except I gradually engage the choke to keep it running as smoothly as possible as the carb empties.

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#4586112 - 11/26/17 08:42 PM Re: Proper Generator Shut Down [Re: SavagePatch]
Cujet Online   content


Registered: 02/15/03
Posts: 7153
Loc: Jupiter, Florida
I do the same thing. It's served me well for the last 16 years with my Subaru Generator. Never a carb problem. Choke increased carefully at the last minute to keep it running. It eventually goes lean and dies, so no risk of washing cylinder walls on shutdown.
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#4586113 - 11/26/17 08:42 PM Re: Proper Generator Shut Down [Re: SavagePatch]
tig1 Offline


Registered: 01/03/09
Posts: 13661
Loc: Illinois
I have a 5KW Powermate with a Subaru engine. In between runs I use Sta-Bil and shut the engine down by turning off the fuel valve. The gen is 10 years old and it starts on the second or third pull after every 3-4 month run.
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#4586174 - 11/26/17 10:02 PM Re: Proper Generator Shut Down [Re: SavagePatch]
bubbatime Offline


Registered: 03/18/08
Posts: 5622
Loc: South Florida
This is how I do things.

If it has a metal tank, I store it completely full with non-ethanol fuel and Stabil to prevent the tank from rusting. Turn the petcock, and run the engine until it dies.

If it has a plastic tank, I store it empty, and let the engine run until it dies.

About every 3 months, I'll pull my generator out of storage, and run it for about 45 minutes with a portable 1500 watt heater plugged into it to exercise it. It always starts on the first pull. I change the oil every two years in these conditions, UNLESS I have to actually use it, in which case I change the oil every 50 hours (no oil filter).
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#4586251 - 11/27/17 03:19 AM Re: Proper Generator Shut Down [Re: Padawan]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: Padawan
Originally Posted By: MadAmos
Fuel off let it run till it starts to die then full choke to empty the carb.


This is the procedure I follow, except I gradually engage the choke to keep it running as smoothly as possible as the carb empties.


Yes, same here.
Once it stumbles for sure, go ahead and hit the "off switch" so the automatic voltage regulator doesn't try to keep up as RPM falls off.
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#4586260 - 11/27/17 04:12 AM Re: Proper Generator Shut Down [Re: MadAmos]
Lubener Offline


Registered: 01/22/11
Posts: 2576
Loc: N.Ohio
Originally Posted By: MadAmos
Fuel off let it run till it starts to die then full choke to empty the carb.

AND drain the tank of gas...
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#4586281 - 11/27/17 05:34 AM Re: Proper Generator Shut Down [Re: SavagePatch]
StevieC Offline


Registered: 08/21/08
Posts: 17116
Loc: Ontario, Canada
I run our back-up generator a couple times a year. (Fall, Spring) I always turn off the fuel and let it run to a stop this way. Never had to take the carb apart yet and I'm using E-10 with no fuel additive.


Edited by StevieC (11/27/17 05:35 AM)
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#4586465 - 11/27/17 10:26 AM Re: Proper Generator Shut Down [Re: Lubener]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: Lubener

AND drain the tank of gas...


I like to turn the valve off and keep the tank full.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4586871 - 11/27/17 06:20 PM Re: Proper Generator Shut Down [Re: SavagePatch]
boraticus Offline


Registered: 04/19/09
Posts: 2905
Loc: Canada
With my Yamaha EF2000is inverter generator I just turn off the fuel valve, run the carb dry and leave it for the winter. Going on my 5th year and so far, no issues with starting in the spring. One year I forgot to drain the carb and the float stuck in the closed position. Had to tap the float bowl a couple times to get it to drop.

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#4587259 - 11/28/17 07:25 AM Re: Proper Generator Shut Down [Re: SavagePatch]
javacontour Offline


Registered: 06/26/03
Posts: 10306
Loc: Illinois
Whatever technique you choose, remove the load before you shut it down. Otherwise, it may damage the generator or anything plugged in.
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#4588225 - 11/28/17 10:30 PM Re: Proper Generator Shut Down [Re: javacontour]
tig1 Offline


Registered: 01/03/09
Posts: 13661
Loc: Illinois
Originally Posted By: javacontour
Whatever technique you choose, remove the load before you shut it down. Otherwise, it may damage the generator or anything plugged in.


+1. A must.
_________________________
2007 Ford Fusion 227,000 miles
M1 0-20 EP
2017 Ford Fusion 49K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters


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