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✔ Article reviewed by Ethan Orenstein. Bringing motorcycles back from the dead since 2013. Learn More.

Kawasaki Z1 Specs, Manuals, & Info

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If you’ve got a Z1 that you’re working on, you’ve come to the right place.

Whether you’re doing a full rebuild or restoration motorcycle project or you just need to complete some routine maintenance, we’ve got all the information and links to what you need to do the job right.

On this page you’ll find:

  • Links to the motorcycle service manual for your Z1.
  • Where you can find used Z1s for sale to start a new motorcycle project or get a parts bike.
  • Specs, details, and information about the history of the Z1. may earn an affiliate commission when you make a purchase through the links on this page.

Z1 Specs & Details

The 1972-1975 Z1 was Kawasaki’s answer to Honda’s earlier released CB750K.

The Z1 is often considered the first true superbike, and was the most powerful Japanese 4-stroke four to date.

The model help to further popularize and solidify the success of the Universal Japanese Motorcycle (UJM) style.

Specs for the Kawasaki Z1 include:

  • Top Speed: 132 mph
  • Engine Displacement: 903cc
  • Cylinders/Engine Type: Air cooled DOHC inline four
  • Compression Ratio: 8.5:1
  • Transmission: 5 speed
  • Wet Weight: 546 lbs

Z1 Years & Variations

Years and model variations for the Z1 include:

  • 1973 Z1
  • 1973 Z1A
  • 1974 Z1B
  • 1976 Z1 (KZ900)

Find a Z1 for Sale Near You

If you’re looking for a Z1 of your own or need a donor parts bike for your current motorcycle project, you can use the used bike search tool to find what you’re looking for.

Click your state below to find used Z1s near you.

These motorcycle search engines search Craigslist listing for the entire state so you don’t have to individually search each specific region.

Once you’ve got the bike up and running, be sure to check back to our motorcycle registration and title guides if you need help getting plates (Especially if you’ve bought the Z1 without a title).

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Content Editor: Ethan Orenstein

Ethan is not just any motorcycle enthusiast. With a decade of experience riding, maintaining, and restoring a range of motorcycles, Ethan brings a wealth of knowledge to the table. Many of the tips and tricks shared on this site are born from hours spent wrenching on personal bikes. Paired with his experience as a journalist covering DMV & insurance topics, is a must-visit site for any home-mechanic. Every article has been carefully reviewed and edited to ensure accuracy, authenticity, and simplicity - all to help bring your bike back from the dead and onto the road.

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