According to Z Power the part number should be 11009-1051.
I ordered one but it doesn't fit.
I checked with an online mircofiche and this is the part for Z1000R, 1100B1/2 and pretty much any of the Kawasakis of that era (can't find an online one for Z1100R)
Photo attached. On the far left is the new one, next to it the old one.
The new one is almost flat whereas mine is a top hat.
Any ideas?

Brian