JetPrime JP ES 003 Kawasaki — SLS/AIS Block-Off Plate — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ES 003
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsKawasaki Ninja 650 (2017–2026)
InstallationPlug-and-play, no wiring harness modifications required
FitmentKawasaki Ninja 650 (2017–2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

The JP ES 003 shuts the Ninja 650's KLEEN ports with an aluminium blank on the original fasteners.

Key Features

  • Kawasaki Ninja 650 (2017–2026)
  • 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 Faired 650 Twin

Sixty-eight horsepower in a sports-styled chassis, aimed at riders who want the look without the riding position. It is the most sensible sports bike Kawasaki sells.

A Trellis Frame

Steel tubing rather than an aluminium beam, which keeps the cost down and gives the Ninja 650 a slightly softer feel that suits its audience.

Not the Electrical Half

The controller monitors its solenoid regardless of what is bolted to the head, so the circuit still needs its own eliminator to keep the panel clear.

Machined Rather Than Cast

Turned from billet with the sealing face cut in one operation, which is why it seals on a ring alone rather than needing compound.

Fitted Cold

There is no reason to attempt this on a warm engine and every reason not to. Aluminium threads and hot castings are a poor combination.

Where Owners Go Wrong

Overtightening into an aluminium head is the commonest damage done, and it converts a short job into a thread repair and a considerably longer afternoon.

Why the Housing Fails

It is a moulding bolted to a cylinder head, living through the widest temperature range on the motorcycle several times a day. The reeds flex on every closed throttle and eventually one cracks.

Sold Separately

Some owners want only the fault gone; others want the whole system out. Kawasaki's arrangement allows both without forcing a choice.

A Sports Bike for Real Roads

Kawasaki gave the Ninja 650 the appearance of a sports machine and the ergonomics of a sensible one, which is why so many end up as everyday motorcycles rather than weekend toys.

Fitment and Compatibility

  • Kawasaki Ninja 650 (2017–2026)

Specifications

Model JP ES 003
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Kawasaki Ninja 650 (2017–2026)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x block-off plate
FitmentWhich bikes this fits
  • Kawasaki Ninja 650 (2017–2026)
07 · Support

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08 · Paddock

Before you go.

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