deere 345 throttle

   / deere 345 throttle #1  

mikehaugen

Elite Member
Joined
Mar 9, 2009
Messages
2,628
Location
Lee, IL
Tractor
John Deere 1070
My mom has a 345 with 20hp kawasaki. The throttle constantly creeps down while mowing. I have mowed her lawn a few times with it and realized how annoying it is. Every minute or 2 you have to bump it up. Can't easily see the bottom of it because it is built into the dash. Before I tear into it, is it worth it? Is there even anything at the base to adjust, like friction discs or something? Is this a common issue? I'll probably talk to the deere dealer one of these days to see if there is a fix for it, but in the meantime I thought you folks may have ideas.
 
   / deere 345 throttle #2  
Looking at the throttle mechanism under the "dash" there doesn't appear to be a friction adjustment. But may be worth a look at both ends of the throttle cable to see if something is loose or missing (i.e. broken part).

You can see the breakdown of the parts on jdparts.com if you want (free registration).
 
   / deere 345 throttle #3  
There's a throttle plate down next to the carb. I don't recall any adjustment there, but that plate is the source of the friction to hold the throttle in position.
 
   / deere 345 throttle #4  
Looking at the throttle mechanism under the "dash" there doesn't appear to be a friction adjustment. But may be worth a look at both ends of the throttle cable to see if something is loose or missing.

Some mowers have a spring associated with the governor linkage. Is it possible someone installed the wrong spring?
Or is it possible you have it adjusted to run the engine too fast?
 
   / deere 345 throttle
  • Thread Starter
#5  
Thanks for the replies guys. I will check these things out further next time I'm there.
 

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