Craftsman Walk-behind mower starts then dies

Reply

  #1  
Old 05-21-11, 09:38 AM
Member
Thread Starter
Join Date: May 2011
Location: United States
Posts: 3
Craftsman Walk-behind mower starts then dies

I have an older Craftsman push lawn mower with a 5hp Tecumseh engine that starts when you prime it, then runs for a second or two, just on the fuel from the primer. It worked great most of the way through the lawn, then I stopped it to pick some weeds, and when I started it again it started sputtering, exactly as if it was running out of gas. Now it won't start for more than a few seconds.

I've changed the filter, the oil, the gas, and opened up the carb which looks pristine inside. I'm kind of at a loss here. Any ideas?
 
Sponsored Links
  #2  
Old 05-21-11, 09:58 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,815
There is a tiny hole in a small unthreaded section of the bolt that holds the bowl on. Clean this hole and the others in the bolt as well.
 
  #3  
Old 05-22-11, 12:15 PM
Member
Thread Starter
Join Date: May 2011
Location: United States
Posts: 3
OK, I cleaned the holes in the bolt, and now it's not turning over at all. I prime four or five times and nothing happens. If the bolt isn't aligned properly with the holes in the "shaft" of the carb is that going to cause problems? Or is it likely that I'm just hosed for good?
 
  #4  
Old 05-22-11, 01:36 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,815
The holes don't line up to anything. Check for spark at the spark plug and post the results.
 
  #5  
Old 05-22-11, 03:48 PM
Member
Join Date: Jun 2006
Location: St. Louis
Posts: 2,365
Make sure you have the outer screw in the air filter mount as it is part of the prime circuit, if it isn't in place it will not prime. Have a good one. Geo
 
  #6  
Old 05-28-11, 06:17 AM
Member
Thread Starter
Join Date: May 2011
Location: United States
Posts: 3
I pulled the sparkplug, and even though it was relatively new, it was a bit gunked up (probably because the oil REALLY needed to be changed when I did it). I cleaned the sparkplug and it started immediately and ran well.

Yay! Thanks for your help!
 
  #7  
Old 04-22-12, 07:45 AM
Member
Join Date: Jul 2011
Location: USA
Posts: 5
Check to make sure the two o-rings on the main jet are good. That was my problem. It would start and then immediately die. The inner o-ring had rotted and gummed up inside the jet housing. See here - Tec_Carb
 
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