Machine wasn't shifting well. Took the side cover off and discovered the shift arm was broken. Ordered a new one. Question - When I put the shift arm in is there any particular way I need to line it up with the selector plate that it rides against? I have it in, shifted it up and down through the gears, seems to be working but I just want to be sure that before I button it up that I have it done correctly. Also I was able to fish out the broken piece that was at the bottom of the engine case. Also I noticed that there are some wear marks on the back of the primary gear, I am assuming due to the broken shift are probably doing a bit of damage. Not sure if this matters. Looking for input. Anything else I should be aware of when I button this back up?