This is my full-proof, gentle and non-destructive way to disassemble a master cylinder (in this case a GPz900R MC). Over time they become seized due to water absorption and oxidation issues. For a project bike I needed a Clutch and Front Brake master cylinder, I have collected a few over Read more…
Introduction Bearings are subject to wear like any other part of a Motorcycle, however they are under considerably more strain and therefore should be replaced at least every 10 years from my experience. Before you can begin to remove your old worn out wheel bearings and replace them with new Read more…
The GPz900R is a bearing suppliers dream! With Wheel and Swingarm bearings requiring replacement at least once in each bikes lifetime. On a GPz900R you have standard wheel bearings that Kawasaki and most bike manufacturers use and hence they are carried by virtually all quality bearing suppliers. Where the GPz90Rr Read more…
When I first opened up the cylinder head cover of a GPz900R many years ago I was surprised to see something I first saw in the late 70’s on a Honda CB750… “Rocker Arms” sitting over the camshafts, but with two valve adjustments on them due the the 16 valve Read more…
Motorcycle electrical system are generally considered a black art by most riders. Although fairly robust, when they do fail the charging and ignition systems present the most headache and generally rate at the top of most forum questions (next to “what oil should I use?”). Types of Charging systems Although Read more…
Background I was riding to work one morning on the zed when I applied the front brake only to hear a loud clunk sound and see something fly from the front. I stopped carefully and discovered one of the caliper mounts had broken. I quickly located the missing piece and Read more…
Fork seal replacement is one of those jobs where the right tools and a bit of know how will result in a stress free maintenance task being completed within next to no time. In fact fork seals are so easy to replace that most of your time will be taken Read more…
This guide will show the Rear Suspension Rebuilding process using a neglected 1984 gpz900r so you can regain back the factory handling. The GPz900R was a revolutionary bike in its day, apart from being water cooled, 115HP on tap, Anti-dive fork and sleak looks, it also had a well designed Read more…
Introduction This tutorial originally appeared on my z900collector wordpress site, however I’ve decided to move it to this site and publish it here with some very minor detail fixes and link the content back to wordpress. There are also some references to this work in my book, you can read Read more…
When production started in 1977 of the Kawasaki z650 B1 model, I doubt the Kawasaki engineers had any idea that 40 years later these bikes would still be on the road and highly sought after! But after a few decades various mechanical systems on the z650 start to show their Read more…