Generac 4000exl generator gas leaking through carb to airbox, help!


  #1  
Old 03-18-13, 04:45 PM
R
Member
Thread Starter
Join Date: Mar 2013
Location: usa
Posts: 5
Received 0 Votes on 0 Posts
Exclamation Generac 4000exl generator gas leaking through carb to airbox, help!

I bought the generator a few years ago and had no problems with it since then. now it wont start and gas is leaking from the choke side of the carb into the airbox. I thought that it may have been flooded so i took the carb off and drained the fuel from it only to have it leak again after a few pulls to start it. im trying to avoid buying a new carb so im hoping there is an easy fix. if not a carb is cheaper than a new one. Any help would be appreciated!
 
  #2  
Old 03-18-13, 07:51 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,603
Received 54 Votes on 49 Posts
You need to take the bowl off the carb and clean the carb. The float is probably stuck down.
 
  #3  
Old 03-18-13, 08:50 PM
R
Member
Thread Starter
Join Date: Mar 2013
Location: usa
Posts: 5
Received 0 Votes on 0 Posts
thats what i did today and the float seemed to move freely and everything seemed to be pretty clean , but it moved with the bowl off, could it be sticking when the bowl is on?
 
  #4  
Old 03-18-13, 08:59 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,603
Received 54 Votes on 49 Posts
Could be, is there a dent in the side of the bowl? Something is allowing the needle to leak. The needle and seat may need to be cleaned.
 
  #5  
Old 03-18-13, 11:14 PM
R
Member
Thread Starter
Join Date: Mar 2013
Location: usa
Posts: 5
Received 0 Votes on 0 Posts
everything is intact as far as i know the bowl was clean and dent free, maybe soak in some carb cleaner? any cleaning suggestions?
 
  #6  
Old 03-18-13, 11:16 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 61,900
Received 1,483 Votes on 1,371 Posts
Don 't soak the needle valve in carb cleaner. It's rubber tipped and will melt or deform.
 
  #7  
Old 03-18-13, 11:24 PM
R
Member
Thread Starter
Join Date: Mar 2013
Location: usa
Posts: 5
Received 0 Votes on 0 Posts
ill go pull it apart again in the am and see what i can do its a tiny carb, didnt look like it would come apart any further.
 
  #8  
Old 03-19-13, 10:39 PM
R
Member
Thread Starter
Join Date: Mar 2013
Location: usa
Posts: 5
Received 0 Votes on 0 Posts
Well I took the carb apart and fixed the leak now the damn thing wont start. im thinking the spark plug got wet i havent had to buy one yet is it something i can get at a hardware store or is it a specialty item?
 
  #9  
Old 03-19-13, 11:57 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,603
Received 54 Votes on 49 Posts
Probably a common plug. If it's a chinese honda GX clone engine, a champion RC12YC will fit.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: