JetPrime JP ES 033 Kawasaki — SLS/AIS Block-Off Plate — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ES 033
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsKawasaki Z1100 (2026–2026)
InstallationPlug-and-play, no wiring harness modifications required
FitmentKawasaki Z1100 (2026) / Kawasaki Z1100 SE (2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

The JP ES 033 seals the Z1100's KLEEN ports in the cylinder head with a machined blank.

Key Features

  • Kawasaki Z1100 (2026)
  • Blanks the secondary air ports in the head
  • Machined from solid aluminium
  • O-ring sealed, no jointing compound
  • Original fastener positions
  • Standard housing refits at any time

A Colour Dashboard

Full connectivity and a legible layout, which the Z1000 never had and which buyers at this price now expect as standard.

Cornering ABS

A six-axis platform feeding lean-sensitive braking and traction. It is the electronics package the previous naked four never received.

Original Fastener Positions

The cover picks up the threads the housing used, at the figures Kawasaki specifies for them. No hole is opened out and no thread in the head is touched.

Homologation

The system is part of the motorcycle's approval where it is fitted, and removing it moves the machine into competition use in those markets.

Twenty Minutes Once Exposed

The work itself is short. Everything else in the job is getting the tank and airbox out of the way.

Why This Is Not Urgent

There is no reason to touch a system that still seals. This becomes worth doing when the petals have aged out, or when the motorcycle is being stripped of its road equipment for other reasons entirely.

Torque, Not Force

The specified figure is low and the temptation to exceed it is high. Resisting that is the entire skill involved in this job.

The Airbox End

Removing the housing leaves an opening where the hose attached, and unfiltered air into an intake is a worse outcome than the system ever was.

Kawasaki Returns to the Naked Litre

After the Z1000 ended and the Z H2 took a very different direction, there was a gap for a straightforward large four. The Z1100 fills it, and it does so with a full modern emissions package.

Sugomi, Refined

The styling is unmistakably Kawasaki and noticeably less extreme than the 2014 Z1000. It has aged into something rather more confident and considerably easier to live with.

Fitment and Compatibility

  • Kawasaki Z1100 (2026–2026)

Specifications

Model JP ES 033
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Kawasaki Z1100 (2026–2026)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x block-off plate
FitmentWhich bikes this fits
  • Kawasaki Z1100 (2026)
07 · Support

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08 · Paddock

Before you go.

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