Help with starting problem

It appears that I may have a problem with my starter. It seems that sometimes when I try to start the tractor it clicks or makes an errr sound like the battery is dead or weak. I have to turn the key back and forth until the starter finally starts cranking and she starts up. Most of the time she will start right up but occasionally when I try to start it cranked and stopped, I then turned the key back and forth until it finally started cranking again. Does this sound like a starter problem? Someone mentioned at an auto place that the valves may need adjustment but I found out that the Kohler CV15 is hydraulic and is self adjusting.



This does not happen often, most of the time she just turns over and starts right up.



Any suggestions as to what would cause this kind of issue? Can I fix this or would it be easier to change out the starter?



Thanks to all!!!