⟲ 360° — drag meThe facts.
| Model | JP ES 003 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Kawasaki Vulcan 650 S (2015–2023) |
| Installation | Plug-and-play, no wiring harness modifications required |
| Fitment | Kawasaki Vulcan 650 S (2015–2023) |
| Road approval | None — closed-circuit and race use only |
DescriptionThe whole story▼
The JP ES 003 caps the Vulcan 650 S's KLEEN ports in the cylinder head with a machined blank.
Key Features
- Kawasaki Vulcan 650 S (2015–2023)
- 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 Cruiser With an ER-6 Engine
Kawasaki put the 649 cc parallel twin into a low chassis with forward controls, which produced a cruiser that actually handles.
Ergo-Fit
Kawasaki offers seats, bars and pegs in three sizes so the motorcycle can be matched to the rider. Very few manufacturers bother and it works.
Reversible
The standard housing refits on its own fasteners with no replacement seals required, so the engine returns to specification whenever it needs to.
Before Any Mapping
Air entering the exhaust after combustion moves the readings, and every fuelling decision taken from those readings inherits the movement.
Twenty Minutes Once Exposed
The work itself is short. Everything else in the job is getting the tank and airbox out of the way.
An Older Head, Careful Threads
On a machine past a decade the threads have been undisturbed for a long time. Working slowly and cleanly is worth the extra few minutes it costs.
What a Cracked Reed Does
It stops sealing in one direction, letting exhaust gas travel back towards the airbox. The residue coats the element and is usually found while chasing something else.
An Inspection Would See
Original fasteners in original positions, an unmarked sealing face and a cover that comes off in minutes. Nothing about it is permanent or hidden.
A Cruiser Nobody Expected to Handle
Putting the ER-6 twin into a low chassis produced a motorcycle that steers considerably better than its rivals, and owners tend to ride them harder than the styling suggests. That changes what matters under the tank.
Ergo-Fit
Kawasaki offers seats, bars and pegs in three sizes so the motorcycle can be matched to its rider. Very few manufacturers bother and on a cruiser it makes a considerable difference.
A Cruiser With a Sports Engine
Kawasaki put the ER-6 parallel twin into a low-slung chassis and produced a cruiser that revs. It is an unusual combination and it means the engine bay is more crowded than the styling suggests.
Fitment and Compatibility
- Kawasaki Vulcan 650 S (2015–2023)
Specifications
| Model | JP ES 003 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Kawasaki Vulcan 650 S (2015–2023) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x block-off plate
FitmentWhich bikes this fits▼
- Kawasaki Vulcan 650 S (2015–2023)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.