Runs and cuts but last startup the forward motion doesnt kick in unless shoved from behind. It will then go until it hits a hill it or shut off again. Then shove off again! Help

SOURCE: windshield wipers / one works and one does not.

Sounds like you need to replace or repair wiper arms as a unit Because one was jamming up it caused the other to stop as they are joined to work in sync with each other.its now a simple case of remove and replace.Is the one that doesnt work stiff or hard to move in any way?Whatever is binding on that arm is the ultimate cause of your problem.

SOURCE: shuts down in reverse

I'm not familiar with that particular mower but I'd bet it is a direct switch. Follow the shifter arm down and you should see a arm or button that arm contacts a switch when you put it in reverse. pull the two wires off that switch, put a wire in between to connect them and it is by-passed.

Please rate if this helps-

SOURCE: Rear skirt on lawn mower flips under when backing up

Sounds like the skirt is too long for the cutting height you are using, either raise the cutting height or shorten the skirt. Remember it's a safety guard for trash kicked up when mowing!

SOURCE: Craftsman lawn tractor mower,

The belt is probably slipping because it is not tight enough. look by the belt, inside there is a little spring, you may half to tighten it.

SOURCE: Belt cam off my Bolens ridding lawn mower 2005

I have the same issue on my neighbors lawnmower.
Good thing is though, the manuals are available online.
Bad thing is the actual service manual, you can buy from their 800 number.
What I did, was merely copied pages from the parts manual, as well as the owners manual. Looks like my Craftsman, whereas you need to take the top off ( seat and back cover ) to get to the two drive belts.
It is not as bad as it looks, especially with the photos helping.
Word of advice, any pulley pley, replace all parts relevant, especially attaching nuts. If not, utilize a threadloocker. Ensure to torque to spec as well with torque wrench, the blades when doing those. Typically, people need to change these at the same time, as maintaining is usually not handled partially, it is usually not at all.