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I have an Onan E140H engine that ran like a top last time I

Customer Question
used it which was 1...
I have an Onan E140H engine that ran like a top last time I used it which was 1 week ago. I tried to start it this week and it just backfires through carb. I checked and have good spark. Replaced all gas lines, cleaned carb. I added a fuel additive to gas, it started and sounded good. Took it out of garage turned on mower deck, shut off like it didn't have enough power to run it. It restarted and tried it again with same result, now it is back to just backfiring and won't start at all. Hope you can help.
JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?
Customer: No shut off on tank, I had cleaned tank replaced fuel lines, and replaced fuel.
JA: Do you plan on doing the work yourself?
Customer: I have a good friend that repairs mowers and doesn't want to help on this engine. But he has been telling me what to do. I have rebuilt diesel motors for years but this is all new for me but I will try.
JA: Anything else we should know to help you best?
Customer: I have not check timing yet.
Submitted: 1 year ago.Category: Small Engine
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Answered in 33 minutes by:
10/13/2016
Technician: Wayne, Engine Rebuilder replied 1 year ago
Wayne
Wayne, Engine Rebuilder
Category: Small Engine
Satisfied Customers: 10,325
Experience: many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines
Verified

Hi I'm Wayne

I will help you with this

What you are describing is plugged jet in the carb

remove the carb, disassemble , boil out in a pot of hot water 10-15 min

air dry, and put a rebuild kit in it

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 -

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Technician: Wayne, Engine Rebuilder replied 1 year ago

Morning

Just a follow up with you

did my answer help you

let me know, Please

Wayne

Ask Your Own Small Engine Question
Customer reply replied 1 year ago
The problem was the spark plug
Technician: Wayne, Engine Rebuilder replied 1 year ago

Hi

That is strange that it ran

But glad it is going for you

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Wayne
Wayne
Wayne, Engine Rebuilder
Category: Small Engine
Satisfied Customers: 10,325
10,325 Satisfied Customers
Experience: many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines

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