Re: 5.5 H/P craftsman tiler model# 917292402 runs great but wont rev up.

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?