JM Customs’ 1982 Kawasaki Z1000J ‘FlatLiner’

FlatLiner by JM Customs

If you haven’t heard of JM Customs yet I would recommend to check out their bikes. There’s for sure an exceptional style embodied in their builds which can’t be missed. James and his team make them aggressive looking with a touch of ‘out of ordinary’ vibe. The guys design bikes in a way that every single part seems a must to be there for the build to look whole. To know what I mean just look at the one above and there’s also the Yamaha XJ600s “Morpheus” build I wrote earlier about.

One of the JMC‘s latest projects – ‘FlatLiner’ is based on 1982 Kawasaki Z1000J“Our Client had one stipulation and that was for us to create a unique Z1000”, says James. Of course, it would have been a much easier job if the donor had been in a good condition but with this bike it wasn’t the case.

FlatLiner JM Customs

The team started out by tearing the bike down to the bare frame. They used the front wheel and rear end of a ZXR 750 (modified into a twin shock set up) giving the rear end some width with the 180 upgrade.

The front end features a nice set of USD forks with the upper tubes wrapped with Carbon Fibre, giving FlatLiner a taller stance. For the whole set to fit nicely JMC reworked the yokes of the ZXR and used the original Z1000 stem. The mudguard at the front is a modified version of a 1981 BMW R80 front guard mounted on the custom-made mounts. The headlight, cage and mini indicators really look awesome. There’s also some riser bars, new levers and grips, headed up by a Koso unit.

1982 Kawasaki Z1000J 'FlatLiner'

According to James, the tailpiece from the original seat was salvaged and they fabricated a whole new seat unit with mounts and a custom tray underneath to stop dirt. The team also integrated the tail and stop lights as well as a plate mount at the rear and of course there is a custom neat fitted diamond stitched seat to set it off.

the front end

“The tank was kept original, as we felt it necessary to maintain the iconic lines of a Z1000.The wheels were rebuilt, powder coat and wrapped with some TKC 80s. We wanted a very aggressive look with this bike and these tires were a given from the get-go!”, James explains.

The stock side panels are repurposed into the light boxes, that hold the ignition and LEDs that run, making the impression of a heartbeat within this beast.

All the custom brake lines are supplied by Hel Performance.

In the workshop

As for the heart of the bike – the engine, James recalls, “…it was in several parts when she arrived. We pulled the engine apart for a full rebuild. We machined the head and honed the barrels out 1mm oversized to install a big bore kit.The carbs were sonic bathed, rebuilt with new components supplied to us by Z Power and installed with Power Filters”.

Custom headers were fabricated, wrapped in matte grey and finished off with some short cans.

closer look at Kawasaki Z1000J

To wrap it up, let me quote James on how he feels about the ‘FlatLiner’ project: “What we finished up with is a modern, aggressive looking Z1000 that not only looks insane but delivers with every twist of the throttle! It has bags of Attitude, Power and Loud Pipes! Myself and my team are wicked proud of this build. It really puts a new slant on a heavily modified platform. A break away from the рurists approach ha ha!”

And the JM Customs team should be proud. She looks awesome indeed!

Kawasaki FlatLiner by JM Customs