Hello my tiler runs and idles but won’t rev up. all the govener springs appear to be hooked up and it will rev up if I manually Throttle it up with the throttle linkage on the carb. I am a motorcycle mechanic but know nothing about goveners and how the work. Is there a schematic available  to show the location and routing of these springs? 

And help with this problem is deeply appreciate. Thank you…

Please post the entire model # for the engine itself..
 
See if this helps till we get a model #:
 https://www.youtube.com/watch?v=hK2sZjavTaw 
 
.
 
.