⟲ 360° — drag meThe facts.
| Model | JP CJP 084H |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Yamaha XJR1300 (1999–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP CJP 084H is the programmable fuel controller for the XJR1300: a full map with every cell empty, waiting for somebody with software and a wideband sensor.
Key Features
- Yamaha XJR1300 (1999–2016)
- 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
Air Cooled and Enormous
Yamaha's 1251 cc four is a design from another era kept in production because people kept buying it. Injection arrived very late in its life.
Where a Wideband Sensor Comes In
The standard oxygen sensor only reports whether the mixture is near stoichiometric. Anybody mapping seriously needs a wideband, because otherwise the numbers being entered are guesses.
Cell by Cell
Serious mapping means holding the engine at one load and one speed, reading the mixture and correcting that cell. It is slow, methodical work and there is no shortcut.
Comparing Two Maps
The software shows them side by side. That is how an owner learns which changes did something and which were imagination, and it is impossible with a fixed curve.
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.
Beyond Its Reach
Ignition timing, the rev limiter, traction control and the riding modes. All of them stay with the standard controller and none of them can be touched from here.
The Rev Limiter Stays
It belongs to the standard controller and no amount of mapping moves it. Anybody hoping for more revs is looking at the wrong component entirely.
On a Single
Every firing event arrives through the chassis. A single is the most revealing engine to map and the least forgiving of a rushed job.
Against Reflashing
A remap of the original controller reaches ignition, the limiter and the rider aids, and it is written into the motorcycle where a workshop will find it. This is narrower, reversible and belongs to the box rather than the bike.
Fitment and Compatibility
- Yamaha XJR1300 (1999–2016)
Specifications
| Model | JP CJP 084H |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Yamaha XJR1300 (1999–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x control unit
FitmentWhich bikes this fits▼
- Yamaha XJR1300 (1999–2016)
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