
What cables are most people using for their clutch?
Would a normal throttle type cable be to thin?
Does anyone know of hand how much travel is required for a zx9R mechanical clutch?
I think I used a MK 3 Cortina one.
There's a 'polo' on the end which you can modify (cut it in half) to fit within a clevis pin.
Just use a bolt with a hole drilled through or a solderless nipple on the clutch actuation arm.
Search for me / Chris Gamlin / clutch cable, my computer is playing up at the moment so would take for ages if I did it 
try mnr not cheap but really well made my standard cable snapped and i replaced it with one of there s and four track days and a lot of road miles later no sign of wear at all great company to deal with as well
Throttle cable is too thin.
Not difficult to modify a standard bike one by fitting a clevis to the pedal end 
Have a look
here.
If you use the standard bike actuator arm at the motor you'll need 12-13mm of linear cable travel.