Here’s the bike I had when I joined the BCCMC.  It’s still looking good.

https://www.facebook.com/share/zY5eiaDvBQUw7uXn/?mibextid=79PoIi

I saw it.  Good price.  Looks to be in good shape.  What's the story on #4 intake?

I’m pretty sure that I once owned that bike.  I bought it from a fellow on Vancouver Island in 2007 or 2008.  It was a rusted corroded non runner.  The bike was originally purchased at Two Cycle City in Kennewick WA. 

When I was restoring it lots of the fasteners were corroded and seized solid.  One of the carb holder screws broke off when I was trying to remove them.  In the process the the threaded hole in the head also cracked so I repaired it with a stud using epoxy putty. 

When I got the bike it was missing the stock snorkel for the air cleaner.  I fashioned the air intake screen using the bottom of a paint can.  It works well and allows for under seat storage.

I rode the bike for several years and sold it for I think $3500. 

In 1976, Kawasaki made some changes to the Z1 and introduced the KZ900.  One of the biggest changes of note was the carb/ intake system.

Still Mikuni carbs but very different from the Z1.  Smaller, 26mm vs 28mm, and different in many other ways.  They changed the open top airbox to an enclosed box with the air entering via a horizontal tube muffler like arrangement at the  top of the box.  It was quite restrictive.  Kawasaki called it a silencer.  Lots of guys just trashed them, hence the birdscreen arrangement that I manufactured.

The upshot of the changes to the fuel system was a few less horsepower, increased bottom end torque, and smoother power curve.  The most notable change was the loss of the delicious intake howl when you twisted your right wrist.  It was truly intoxicating.