Briggs & Stratton 18 hp runaway


  #1  
Old 07-10-13, 03:13 PM
H
Member
Thread Starter
Join Date: Jul 2013
Location: USA
Posts: 1
Received 0 Votes on 0 Posts
Briggs & Stratton 18 hp runaway

Briggs & Stratton 18 hp twin
Model 422777
Type 128101

Engine on riding mower was leaking oil badly. I replaced the PTO side seal, oil pump seal, sump gasket, and two head gaskets. Engine started on first try, but will not throttle down--runs wide open. What could I have done to make this happen and how do I fix it?
 
  #2  
Old 07-10-13, 03:44 PM
J
Banned. Rule And/Or Policy Violation
Join Date: Apr 2013
Location: USA
Posts: 4,294
Received 1 Vote on 1 Post
Look at the throttle linkage and see if it's moving properly.
100% sure you installed the governor spring in the right hole and did not bend or bind it?
 
  #3  
Old 07-10-13, 04:12 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,898
Received 87 Votes on 81 Posts
Also, when you had the sump cover off, if the governor gear assembly shifts out of place while you put the cover on, it will not work. You might have to pull it back off if you can find no problem with the throttle or linkage.
 
 

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