Speedo Gear Box

Hello everyone, I have a dilemma. I have replaced the Speedo Gear Box on my Kawasaki KZ1000 A1 motorcycle, but the new part has a 12mm hole for the cable, while the original had an 11mm hole.

I wonder if a speedometer cable from a Kawasaki J would work on my bike.

J models don't use a cable they are electronic speedo's and are driven by electrical pulses.
The drive at the wheel is a hal sensor that generates pulses not a mechanical drive that spins a cable. 

FWIW being in South America & all, Motion Pro custom make cables in any configuration. They have helped me out many times in the past.

www.motionpro.com/

Thanks Warren3200gt and slayer61 for replying.

These Japanese don't know anything!.

Specifically, the Speedo Gear Box that I bought was this, but I did not realize that the size of the cable connection changed, and I do not realize which cable to buy.

japan.webike.net/products/23367386.html

In the end I had one made here at a local store, but the quality is lamentable.

The '80 model Kz1000 MK.II and the LTD use a speedo cable that has the bigger diameter piece that screws onto the speedo drive. Its a tad bigger than the speedo cables for the '78 and '79 Kz1000's. I think the Kawasaki part number is 54001-1024 for that cable. I believe its NLA though...