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Proper Generator Shut Down #4586078
11/26/17 08:05 PM
11/26/17 08:05 PM
Joined: May 2015
Posts: 669
California
SavagePatch Offline OP
SavagePatch  Offline OP
Joined: May 2015
Posts: 669
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.

Last edited by SavagePatch; 11/26/17 08:15 PM. Reason: Fuel
Re: Proper Generator Shut Down [Re: SavagePatch] #4586083
11/26/17 08:11 PM
11/26/17 08:11 PM
Joined: Oct 2009
Posts: 3,509
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,509
Wet side WA
If you're not going to empty the tank let the generator run it dry.


2004 Corolla 126649
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Proper Generator Shut Down [Re: SavagePatch] #4586085
11/26/17 08:12 PM
11/26/17 08:12 PM
Joined: Apr 2009
Posts: 26
California
MadAmos Offline
MadAmos  Offline
Joined: Apr 2009
Posts: 26
California
Fuel off let it run till it starts to die then full choke to empty the carb.


2000 Ford F250 7.3
1999 Miata
2014 Cadillac ELR
2017 Cruze RS Hatchback 6MT
Re: Proper Generator Shut Down [Re: SavagePatch] #4586095
11/26/17 08:19 PM
11/26/17 08:19 PM
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,075
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 ...


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Proper Generator Shut Down [Re: MadAmos] #4586106
11/26/17 08:38 PM
11/26/17 08:38 PM
Joined: Aug 2008
Posts: 340
NJ
Padawan Offline
Padawan  Offline
Joined: Aug 2008
Posts: 340
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.

Re: Proper Generator Shut Down [Re: SavagePatch] #4586112
11/26/17 08:42 PM
11/26/17 08:42 PM
Joined: Feb 2003
Posts: 7,679
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,679
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.


People who count on their fingers should maintain a discreet silence.
Re: Proper Generator Shut Down [Re: SavagePatch] #4586113
11/26/17 08:42 PM
11/26/17 08:42 PM
Joined: Jan 2009
Posts: 13,974
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,974
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.


2007 Ford Fusion 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: Proper Generator Shut Down [Re: SavagePatch] #4586174
11/26/17 10:02 PM
11/26/17 10:02 PM
Joined: Mar 2008
Posts: 5,963
South Florida
bubbatime Offline
bubbatime  Offline
Joined: Mar 2008
Posts: 5,963
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).


17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 Maxlife Syn 5W30
06 GMC Sierra Nextgen 10W30


Re: Proper Generator Shut Down [Re: Padawan] #4586251
11/27/17 03:19 AM
11/27/17 03:19 AM
Joined: Dec 2016
Posts: 7,126
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,126
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.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Proper Generator Shut Down [Re: MadAmos] #4586260
11/27/17 04:12 AM
11/27/17 04:12 AM
Joined: Jan 2011
Posts: 2,826
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,826
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...


The "thinking" man's friend.
Re: Proper Generator Shut Down [Re: SavagePatch] #4586281
11/27/17 05:34 AM
11/27/17 05:34 AM
Joined: Aug 2008
Posts: 21,219
ON, Canada eh?
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 21,219
ON, Canada eh?
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.

Last edited by StevieC; 11/27/17 05:35 AM.

'18 Dodge Grand Caravan GT - AMSOIL SS 5w20
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF
Re: Proper Generator Shut Down [Re: Lubener] #4586465
11/27/17 10:26 AM
11/27/17 10:26 AM
Joined: Dec 2016
Posts: 7,126
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,126
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."
Re: Proper Generator Shut Down [Re: SavagePatch] #4586871
11/27/17 06:20 PM
11/27/17 06:20 PM
Joined: Apr 2009
Posts: 2,933
Canada
boraticus Offline
boraticus  Offline
Joined: Apr 2009
Posts: 2,933
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.

Re: Proper Generator Shut Down [Re: SavagePatch] #4587259
11/28/17 07:25 AM
11/28/17 07:25 AM
Joined: Jun 2003
Posts: 10,534
Illinois
javacontour Offline
javacontour  Offline
Joined: Jun 2003
Posts: 10,534
Illinois
Whatever technique you choose, remove the load before you shut it down. Otherwise, it may damage the generator or anything plugged in.


network down, IP packets delivered via UPS -BOFH
Re: Proper Generator Shut Down [Re: javacontour] #4588225
11/28/17 10:30 PM
11/28/17 10:30 PM
Joined: Jan 2009
Posts: 13,974
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,974
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 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

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