20 hp B& S motor stalls under load


  #1  
Old 05-04-12, 06:31 PM
A
Member
Thread Starter
Join Date: May 2012
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
20 hp B& S motor stalls under load

I have a JD L120 mower and engine runs fine at idle but when i engage blades it stalls like out of gas. starts emitting black smoke sometimes white also. have drained all gas put in fresh gas and stab-il, replaced both plugs even replaced coil but still same problem. HELP please
 
  #2  
Old 05-04-12, 07:30 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 15,837
Received 121 Upvotes on 111 Posts
Check the oil. Is it thin, and/or does it smell like gas?
 
  #3  
Old 05-04-12, 07:33 PM
M
Member
Join Date: May 2006
Location: Iowa!!!!!
Posts: 3,806
Received 30 Upvotes on 29 Posts
What do you get with half throttle then engage the blades - same thing? If so think in terms of a safety switch.
 
 

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