⟲ 360° — drag meThe facts.
| Model | JP MJ 008 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Kawasaki W800 (2011–2022) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 008 corrects the mixture on the W800 without touching the original controller, its adaptations or its fault memory in any way.
Key Features
- Kawasaki W800 (2011–2022)
- Preset fuel module, no programming required
- Corrects the mixture without remapping the original electronics
- Plug-and-play with model-specific wiring
- Around 200 g, fitted in an evening
- Unplugs at any time, nothing is written to the motorcycle
A Bevel Drive Camshaft
Kawasaki drives the W800's camshaft through a vertical shaft and bevel gears, which is an expensive way to do it and the reason the engine looks right.
The Lambda Sensor Keeps Working
At small openings the controller still trims the mixture against the oxygen sensor, which means the module works alongside that loop rather than fighting it. At larger openings the sensor drops out and the module's correction is what remains.
The Price of the Alternative
A dyno session with a mapping specialist costs several times what this does, and the result is written into the original controller where it stays. Both approaches are legitimate and they suit different owners.
Mounting It Properly
Somewhere dry, secured, and where the harness is not stretched or pinched by the subframe. Ten minutes of care here is the difference between a component that lasts and one that develops an intermittent fault.
Who Should Not Buy One
An owner with a standard exhaust, a recent motorcycle and no complaint about how it runs. There is no reason to fit a correction to something that is already correct.
Sequence With an Exhaust
Fit the silencer, ride it, then fit the module. Two changes at once tell the rider nothing about either, and the exhaust is the one that moves the mixture furthest.
What the Price Covers
Development of a curve for one engine, a harness with the right connectors and a sealed body. The last two are cheap; the first is why the catalogue is a list of motorcycles.
A Single Curve, Not a Compromise
Because the module is developed for one engine, the correction can be shaped for that engine's behaviour rather than averaged across a range of machines with different requirements.
Fitment and Compatibility
- Kawasaki W800 (2011–2022)
- Covers the W800 Cafe, W800 Street versions of this model
Specifications
| Model | JP MJ 008 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Kawasaki W800 (2011–2022) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- Kawasaki W800 (2011–2022)
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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.