⟲ 360° — drag meThe facts.
| Model | JP CJP 042B |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW F 800 S (2006–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP CJP 042B gives a track-prepared F 800 S a fuel map that can follow the fuel, the weather and the exhaust rather than being fixed at the factory.
Key Features
- BMW F 800 S (2006–2016)
- Fully programmable fuel map, written on a PC
- Complete two-axis management: engine speed and load
- For engines with an aftermarket exhaust or air filter
- Plug-and-play with model-specific wiring
- Unplugs at any time, nothing is written to the motorcycle
The Early Sports Version
Before the GT there was the S, a half-faired 800 twin that BMW positioned against the Japanese middleweights and priced like a German one.
Five Hundred Grams
Heavier than the preset module because there is more inside it. On any motorcycle that is a mounting question rather than a weight question.
The Learning Curve
Two evenings to understand the software, several more to produce something worth keeping. That is the honest estimate and it is the main reason people buy the other unit.
Ambient Conditions
A map developed on a cold morning is slightly rich on a hot afternoon. The standard controller compensates for most of it and the last part is the price of a fixed map.
Plugs Still Tell You Something
Reading spark plugs is an old technique and a coarse one, but on a track bike after a full-throttle run it still catches a map that is badly wrong.
Mount It Where the Cable Reaches
The single most useful piece of installation advice: put the USB connection somewhere accessible. Mapping means connecting repeatedly and buried units get mapped once.
Not a Power Product
The output figure barely moves. What changes is that the engine delivers what it has cleanly everywhere, which is worth more on a road than a number on a sheet.
On a Twin
Widely spaced firing events make mixture errors easy to feel. Owners of large twins usually notice the improvement from careful mapping before anybody else does.
The Sale Afterwards
A motorcycle offered with this unit should come with its map file and a note of the configuration it was written for. Without those the next owner inherits a blank sheet and a bill.
Fitment and Compatibility
- BMW F 800 S (2006–2016)
Specifications
| Model | JP CJP 042B |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW F 800 S (2006–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x control unit
FitmentWhich bikes this fits▼
- BMW F 800 S (2006–2016)
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