Generac generator problem

[sobi1998]

I got a 15000 watt generac generator. I’m trying to sell it but it won’t start. It’s electric start. It will crank and crank but won’t turn over. It has good spark, compression and fresh gas. Could it be a gummed you carb? It did sit for about 2 years
Any suggestions? I’ve added new spark plugs and drained old gas and added fresh gas

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[Vaquero]

Gummed up carburetor

 

[Charlie]

Gummed up carburetor

That's where I'd start looking if all else appears OK.

 

[vmax]

Unless the engine has a fuel pump, it may depend of a diaphragm to move the fuel...
I cant tell you how many times replacing that $2 part has got me up and running

 

[V-Tach]

I agree....carb......can't let them sit that long even if you run it out of gas....most likely culprit is ethanol........I had the same problem with one mine...rebuild kit was like $15.00...new carb was only $28.00...I R&R'd the carb...........

looks a bit small for a 15000 watt generator compared to my 8500 watt Generac.....probably just the pic....

 

[sobi1998]

I agree....carb......can't let them sit that long even if you run it out of gas....most likely culprit is ethanol........I had the same problem with one mine...rebuild kit was like $15.00...new carb was only $28.00...I R&R'd the carb...........

looks a bit small for a 15000 watt generator compared to my 8500 watt Generac.....

Picture doesn’t do it justice. I’m 6’ and that handle bar is over waist height


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[V-Tach]

Kinda what I thought......I take it you have another.....

Can't be without one in Texas.....imho...

 

[sobi1998]

I did a quick search on google for a replacement carburetor and all the prices I saw were at least $90. Could’ve searched wrong but thats what I saw


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[Whistler]

Frequently the float needle gets stuck if it sits full of fuel too long. Drop the float bowl and clean the needle valve

 

[Whistler]

Sorry for short reply, stabbed my index finger to the bone and have it wrapped like a mummy. Yes my damn trigger finger!

 

[V-Tach]

I changed mine 3 years ago after Harvey.......different engine/carb......

Take the carb apart, spray it with carb cleaner and spray air through every orifice you can....be careful with the rubber parts and gaskets.....betting it starts..........

 

[FireInTheWire]

Yup time to get dirty. Clean those jets.

Whatever you do! Don't spray carb cleaner in your eye. Trust me....

 

[candcallen]

Did anyone suggest carb?

I run a half gallon thru mine 2x a year with stabil in it and I still run it dry. Its 10 years old and started first pull a couple weeks back.

Lucky I guess. But you gotta run them dry at the very least or the turn into varnished gummy bears like crap inside all the holes.

 

[rotor]

Before you do the whole carb thing try spraying some of that engine start ether into the air intake. Some times if you get ignition with that the engine will keep going and maybe clean the carb. Otherwise do the carb.

 

[EZ-E]

Order up some PRI-G, its worked on other generators that have been sitting for too long.

PREPPERS use PRI-G to store 55gal drums of fuel. They also have a PRI-D for diesel.
Ive ran PRI-G in my boat for the last 4yrs that sits from time to time & have never had an issue with not starting when i launch.

 

[FireInTheWire]

Order up some PRI-G, its worked on other generators that have been sitting for too long.

PREPPERS use PRI-G to store 55gal drums of fuel. They also have a PRI-D for diesel.
Ive ran PRI-G in my boat for the last 4yrs that sits from time to time & have never had an issue with not starting when i launch.

You still up?

 

[Whistler]

Order up some PRI-G, its worked on other generators that have been sitting for too long.

PREPPERS use PRI-G to store 55gal drums of fuel. They also have a PRI-D for diesel.
Ive ran PRI-G in my boat for the last 4yrs that sits from time to time & have never had an issue with not starting when i launch.

I bought some of that but haven't used it yet. The gas has been in my truck about a year.

 

[Dawico]

Order up some PRI-G, its worked on other generators that have been sitting for too long.

PREPPERS use PRI-G to store 55gal drums of fuel. They also have a PRI-D for diesel.
Ive ran PRI-G in my boat for the last 4yrs that sits from time to time & have never had an issue with not starting when i launch.

I haven't used that but there are some good products that will save gummed up carbs without tearing them apart.

I bought some premixed stuff that really helped out a chainsaw that had been sitting.

 

[Vaquero]

Kinda what I thought......I take it you have another.....

Can't be without one in Texas.....imho...

Looks like a few in the background.

 

[Groundhog45]

I would try to use ethanol free gas if possible. Many QT and Walmart/Murphys stations are carrying it. I wouldn't use their regular gas in my stuff but the ethanol free is all I use in the mower and other small engines.

https://www.pure-gas.org/index.jsp?stateprov=TX