How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Wayne Your Own Question
Wayne, Engine Rebuilder
Category: Small Engine
Satisfied Customers: 9810
Experience:  many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines
Type Your Small Engine Question Here...
Wayne is online now
A new question is answered every 9 seconds

My Generac 7750 EXL was in storage for several months. I

Customer Question

My Generac 7750 EXL was in storage for several months. I live on East Coast of FL and need my generator today.
Submitted: 1 year ago.
Category: Small Engine
Customer: replied 1 year ago.
I installed fresh oil to the fill line and fresh gas. The 15 hp Model GH-410 engine will start and run for about 20 seconds and then shuts down. I do not have a load on the generator. I will appreciate your suggestion.
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

sounds like your needle valve is stuck in the carb

drop the bowl off and make sure the float is moving free and needle valve is dropping also

I hope this helped you

Hi. If this helped you,

Please remember to rate my answer 3 or more stars.

I do not get paid for question, unless you rate my answer

If more info is needed, use the reply button -


Customer: replied 1 year ago.
Wayne,I removed the fuel bowl below the carb and tested the float. I allow fuel to flow freely. I did not see a needle valve. I reassembled the carb and started the engine. It runs about 20 seconds and shuts down as if I am pushing the "off" switch. Could the issue be the off switch or low oil sensor? How may I bypass those switches?
Expert:  Wayne replied 1 year ago.


yes it can be the low oil pressure switch

remove the wire from it

Expert:  Wayne replied 1 year ago.


Just a follow up with you

did my answer help you

let me know, Please