Service manual Z400 1979

punisher11b wrote: I might be wrong but i think the old website that was dedicated to the kz 400 got shut down. Hopefully someone will correct me if i'm wrong but it was the best place for all things related to the kz400. The kz400 is the american model and z400 is everywhere else / European model if i remember correctly. I don't think their is any difference at all and it is just a code for where it was sold. I use bikebandit / Z1Enterprise / Partzilla for my parts on my 1980 440 . This link should take you to your models manual.  gpzweb.s3-website-us-east-1.amazonaws.co...ase99924_1018_03.pdf  

loudhvx wrote:

punisher11b wrote: I might be wrong but i think the old website that was dedicated to the kz 400 got shut down. Hopefully someone will correct me if i'm wrong but it was the best place for all things related to the kz400. The kz400 is the american model and z400 is everywhere else / European model if i remember correctly. I don't think their is any difference at all and it is just a code for where it was sold. I use bikebandit / Z1Enterprise / Partzilla for my parts on my 1980 440 . This link should take you to your models manual.  gpzweb.s3-website-us-east-1.amazonaws.co...ase99924_1018_03.pdf  

Sorry, but that pdf is for the inline-four Kz400 which is based on the 500 and 550 inline fours.  

The Kz400 twin is a very different machine, obviously.

The Kz400 twins can be broken down into the earlier motor and later motor.  They can be differentiated by the way the head looks.  The early type had eccentric valve adjusters under a cover on the sides of the head.  The later type had four caps on the front and back of the motor that uncovered set-screw type valve adjusters.

The bike in the photo of the original post has the newer style head, so a manual from a later 400 or even 440 might be of some help, if you can find it.