⟲ 360° — drag meThe facts.
| Model | JP MJ 008 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Yamaha FJR1300 (2013–2020) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 008 is what an owner fits to the FJR1300 after an exhaust, when the standard closed-loop correction has run out of authority.
Key Features
- Yamaha FJR1300 (2013–2020)
- 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
The Long Distance Four
Yamaha's 1298 cc shaft-driven tourer has been in production for over two decades and is the machine of choice for a great many police forces.
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.
It Does Not Touch Ignition
Advance and retard are the standard controller's business. A fuel module cannot alter them, which limits what it can achieve and also removes the commonest way to damage an engine electronically.
The Limits of a Module
It cannot repair a mechanical fault, cannot raise a rev limit and cannot alter ignition timing. Everything it does is fuel quantity, which is a narrow tool used precisely.
Keeping It or Selling It
The module can go with the motorcycle or come off before the advertisement is written. Both happen and neither harms the machine.
The Mechanism, Once More
An injector is a valve that opens for a measured time. Fuel quantity is that time. A module intercepts the instruction and lengthens or shortens it, and everything else about the motorcycle carries on unchanged.
Heat
Under a seat is warmer than most owners assume once an engine has been working. The module is built for it, but pressing it against a subframe rail that carries exhaust heat is still worth avoiding.
The Injector Itself Is Unchanged
No hardware is replaced. The standard injectors, fuel pump and pressure regulator all continue exactly as they were, which keeps the fuel system entirely factory.
Fitment and Compatibility
- Yamaha FJR1300 (2013–2020)
Specifications
| Model | JP MJ 008 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Yamaha FJR1300 (2013–2020) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- Yamaha FJR1300 (2013–2020)
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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.