How hard is it to put a timing chain in a z400? Should i have someone do it or can i do it myself?

 

its very easy to do if your somewhat mechanical and having the service manual helps, it takes around a couple of hours to do
and if you have never done it before and want to learn about your quad then buy the service manual and do it your self.
and like what was said before if you think your going to screw it up then have somebody else do it for you