Hello, starting plans for my cable shift setup on my 915 but i need to know what the pattern is at the trans.
Looking at the tailstock im assuming its in and turn clockwise for first
out and clockwise for 2nd
in and middle for 3rd
out and middle for 4th
in and counter for 5th
out and counter for reverse...

Is this right ?

Patrick motor sports has
a complete system already designed. I have heard that it works well. Why reinvent the wheel if you don't have to, unless theirs is cost prohibitive.

You are correct on the shift pattern looking at it from the back. we have also been looking into doing a cable shift for a 915 let us know how it works out.

These guys have been making them for years.
http://www.cableshift.com/915/915%20page.html
I have no idea how well they work.

Because it's more fun to fabricate...

Good luck!