Carb leaks after shutdown

Reply

  #1  
Old 02-11-13, 01:20 PM
Member
Thread Starter
Join Date: Jul 2005
Location: USA
Posts: 36
Carb leaks after shutdown

I have a Husqvarna 125B leaf blower which begins leaking fuel from the carburetor choke shaft after I shut it off. I've rebuilt the carburetor and unplugged the tank cap vent hole, but it still leaks. The carburetor is above the fuel tank, so pressure is pushing the fuel uphill to the carb. It has a manual priming pump. Any ideas for what else to check?
 
Sponsored Links
  #2  
Old 02-11-13, 02:14 PM
Member
Join Date: Jan 2013
Location: U.S.A.
Posts: 1,475
My first guess would be that the float is stuck, has a hole in it, or simply needs to be adjusted.
 
  #3  
Old 02-11-13, 02:33 PM
Member
Thread Starter
Join Date: Jul 2005
Location: USA
Posts: 36
So this is a two-cycle engine with the typical spring-loaded inlet needle valve that the cylinder suction pulls open by a vacuum diaphram. It has no float. In the rebuild process, I replaced both the needle valve, spring and vacuum diaphram. It does seem logical though that the needle valve, which is closed by spring pressure with the engine off, would keep fuel from coming into the carb, even if pressure is trying to push it in. Any other ideas?
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes