Try Shortening the Clutch Rod to the Clutch fork by 3/4 of an inch, this will bring the lower arm on the Z bar more straight up and down. then lengthen the Clutch rod from the pedal set to make up the difference for close to the proper clutch adjustment. Then final adjust on the lower clutch rod at the fork.
Looks like this is a special aftermarket Z Bar designed to work around the header tube. So it is going to need to be totally readjusted to get the proper geometry angles of the clutch linkages and get the proper clearances to the components.
