⟲ 360° — drag meThe facts.
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW R1200GS Adventure (2004–2018) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 004 is the fuel module JetPrime lists for the R1200GS Adventure, supplied with model-specific wiring and fitted in an evening with no special tools.
Key Features
- BMW R1200GS Adventure (2004–2018)
- 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
Thirty Litres of Fuel
The Adventure carries a bigger tank, more protection and a heavier laden weight. That mass changes what the rider asks of the engine at low speed.
And With an Open Filter
More air on the intake side has the same effect from the other direction. The standard closed-loop correction handles part of it and runs out of authority for the rest, particularly at larger throttle openings.
Exhaust First, Module Second
If a silencer is going on, fit it first and then the module. Doing it the other way round means judging the effect of two changes at once, which tells the rider nothing useful about either.
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.
Nothing Upstream Notices
The engine controller issues its instruction and the module modifies it afterwards. From the controller's point of view the motorcycle behaves exactly as it always has, which is why nothing is logged.
A Curve, Not a Setting
The correction varies with load and engine speed rather than being a single percentage. That is what separates a developed module from a resistor in a box, and it is why it is sold per model.
Commuting
Stop-start traffic is the opposite case. Every junction is a transition off a closed throttle, which is exactly the region where a lean factory map is most obviously lean.
Why Response Is Not Power
Two motorcycles with identical peak figures can feel completely different because of what happens in the first fraction of throttle travel. That difference is worth more on a road than ten horsepower at the top.
Fitment and Compatibility
- BMW R1200GS Adventure (2004–2018)
Specifications
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW R1200GS Adventure (2004–2018) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- BMW R1200GS Adventure (2004–2018)
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