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Onan 4.0BFA IR/ 160 120 Carb Kit


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  #1  
Old 03-02-2017, 10:05:33 AM
benraines304 benraines304 is offline
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Default Onan 4.0BFA IR/ 160 120 Carb Kit

I'm looking for a carb kit for this walbro carburetor that has come off an old Onan 4.0BFA Generator.

I can't seem to find a model number for the carb anywhere.

I can attach another pic if needed.

Any input or pointing in the right direction is appreciated..

Thanks
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  #2  
Old 03-02-2017, 10:47:35 AM
Kevin K Kevin K is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb kit

It looks like a Walbro LUA carburetor used on some Onan BFA and BGA generators.
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Old 03-02-2017, 10:51:22 AM
benraines304 benraines304 is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb kit

Great.. Thats what I was thinking to.... the LUA threw me off....
I wish they'd label these carbs better...

Thanks again
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Old 03-02-2017, 10:58:47 AM
LRomero LRomero is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb kit

When you pull the top cover off, can you take a picture of the carburetor for me? In particular, there is a small screw toward the top of the carburetor directly above the points box. I'm trying to see how that is setup, because both LUA carburetors I have on a BFA and NH have been tampered with.
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Old 03-05-2017, 08:40:02 PM
benraines304 benraines304 is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb kit

Quote:
Originally Posted by LRomero View Post
When you pull the top cover off, can you take a picture of the carburetor for me? In particular, there is a small screw toward the top of the carburetor directly above the points box. I'm trying to see how that is setup, because both LUA carburetors I have on a BFA and NH have been tampered with.
Hope these pics help....
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Old 03-05-2017, 09:06:03 PM
LRomero LRomero is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb kit

This does help, thanks!

In the picture I attached, can you get a better picture of this area? Also a picture of the outside of the carburetor where this but is?

Is this screw bottomed out on yours or is there room to thread in?
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Old 04-09-2018, 10:54:09 PM
Dennis112885 Dennis112885 is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb kit

Quote:
Originally Posted by LRomero View Post
This does help, thanks!

In the picture I attached, can you get a better picture of this area? Also a picture of the outside of the carburetor where this but is?

Is this screw bottomed out on yours or is there room to thread in?
Did you ever figure this out? I'm wondering the same thing.
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Old 04-10-2018, 02:54:11 PM
consolenut consolenut is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb Kit

Just clean the carb and the needles with carb cleaner and air. Most time don't need a rebuild kit. Ive taken apart and cleaned half dozen of those carbs. All run like new. 2 cans of carb cleaner per carb but there clean
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Old 04-10-2018, 09:44:38 PM
Dennis112885 Dennis112885 is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb Kit

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Originally Posted by consolenut View Post
Just clean the carb and the needles with carb cleaner and air. Most time don't need a rebuild kit. Ive taken apart and cleaned half dozen of those carbs. All run like new. 2 cans of carb cleaner per carb but there clean
I cleaned my carb. I'm going to do it again. I lost the float spring so I bought a rebuild kit.

What I'm asking about is the plug/set screw that screws into the carb. LRomero circled it in a picture he attached and I attached a diagram with a red arrow pointing to where it is installed. What I want to know is if this set screw should be screwed all of the way in. There is a jet that it butts up to if it is screwed in completely, blocking off the jet. Looking at the parts diagram, there is normally a plug. It shows an option for a variable jet kit which has a set screw.
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  #10  
Old 04-14-2018, 09:20:33 PM
Dennis112885 Dennis112885 is offline
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Default Re: Onan 4.0BFA IR/ 160 120 Carb Kit

Quote:
Originally Posted by Dennis112885 View Post
What I'm asking about is the plug/set screw that screws into the carb. LRomero circled it in a picture he attached and I attached a diagram with a red arrow pointing to where it is installed. What I want to know is if this set screw should be screwed all of the way in. There is a jet that it butts up to if it is screwed in completely, blocking off the jet. Looking at the parts diagram, there is normally a plug. It shows an option for a variable jet kit which has a set screw.
In case anyone else has this issue, I had to screw the set screw all of the way in for the engine to run.
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