Chosen Solution

I can’t figure out how to get to the cable under the mower to tighten it.

Ray, if your cable is in deed adjustable, check the attached links and they will show how to make adj. A lot of self propelled models will need stretched cable assy. replaced as some have no adjustment or sometimes it is the stretched drive belt that needs replaced. Check the attached links,instruction and guides, Good luck. I hope this helped you out, if so let me know by pressing the helpful button. https://www.youtube.com/watch?v=gYpW9t5bhttp://yardcare.toro.com/video/mower-maihttps://www.youtube.com/watch?v=ExWrYf-9http://lawntoolsguide.com/how-to-fix-a-s

There is an entire troubleshooting guide for tightening the cable as well as other issues that may arise here: https://lawntoolslist.com/best-self-prop… and here: http://www.ehow.com/how_8758641_adjust-c