EJK Electronic Jet Kit Gen 3 Tune Module for Yamaha YZF R1 2002-2008 Yamaha YZF-R1 (2002-2003)
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EJK Electronic Jet Kit Gen 3 Tune Module for Yamaha YZF R1 2002-2008 Yamaha YZF-R1 (2002-2003)
EJK Electronic Jet Kit Gen 3.5 tune module for Yamaha YZF R1 2002-2008
Plug-and-play tuning module
Easy to adjust
Ready to install, comes with model-specific plugs
Smart Load-Based system
Why the EJK?
Tuning Made Easy, simple. We all love the KISS principle (Keep It Stupid Simple), which is what the EJK offers. Full range tunability, without the need for a Dyno test bench or expertise. The EJK offers smart Load-Based technology, that helps you improve your bike without hassle.
What is the EJK?
The EJK (Electronic Jet Kit) module is a piggyback tuning module for motorcycles with Electronic Fuel Injection. It is installed between the vehicle computer (ECU) and the fuel injectors, altering the signal from the computer to the injectors in order to improve the bike's performance and fuel response.
Most bikes come from the factory with sub-optimal fueling. They are tuned to the needs for environmental approval, not for optimal driving. And the ECU's are a closed system, you can't change anything to it as user. The EJK injection module changes that, allowing you to make small changes and giving you a stable platform to optimize your bike.
What makes the EJK stand out?
Smart technology at a low price. Most tuning module require expert knowledge and a thick wallet. The EJK keeps tuning simple, thanks to Load-Based Technology: the module changes fueling according to the demands placed on the engine, the (mechanical) load. It offers true tuning, at a very modest price. Simple, Easy, Affordable.
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How does this EJK work on so many R1 model years?
Easy: that's the smart design of EJK. The EJK module is load-based and hence less model-dependent, without sacrificing on effectivity. Most modules are Alpha-N tuning: they use a 'dumb' Excel-style mapping with RPM and Throttle Position to decide which value to modify the fueling with. Clever but dumb at the same time, as it's not flexible.
The EJK is load-based, adjusting the fueling according to the engine's load, which makes it much more universally applicable and effective.
For use on:
Yamaha R1 2002-2003
Yamaha R1 2004-2006
Yamaha R1 2007-2008
| Feature Name | Description |
| NONE | Feature is NOT enabled and will be skipped over when navigating through features with MODE button. |
| GREEN FUEL | Feature allows fuel adjustment when the Green zone is active which is typically during idle and cruising conditions. |
| YELLOW FUEL | Feature allows fuel adjustment when the Yellow zone is active which is typically during acceleration conditions. |
| RED FUEL | Feature allows fuel adjustment when the Red zone is active which is typically during full throttle conditions. |
| GRN LWR SW PT | Feature allows adjustment of when the Green zone engages. Typically relates to an RPM value to determine if fuel adjustment should be allowed at idle or not. |
| YEL LWR SW PT | Feature allows adjustment of when the Yellow zone engages. |
| RED LWR SW PT | Feature allows adjustment of when the Red zone engages. |
| ACCEL PUMP FUEL | Feature allows fuel adjustment when the Accel Pump is active. |
| DECEL FUEL | Feature allows fuel adjustment when the vehicle is de-accelerating at a moderate to high rate. |
| GRN UPR SW PT | Feature allows adjustment of when the Green zone shuts off. Typically relates to an RPM value to determine if fuel adjustment should be allowed above a mid-range cruising RPM. |
| VCA SW PT | Represents transition between factory open loop and closed loop. When the LED display shows a solid BLUE light in the 8th position then the controller is interfacing with the ECU closed loop mode. Fashion rarely needs to be adjusted. |
| CLOSED LOOP FUEL | Feature allows fuel adjustment when the VC zone is active. Feature implements an indirect fueling method where the O2 signal is being manipulated which causes the ECU to make fuel changes. Only affects fueling while ECU is in closed loop mode. |
| VC OFFSET | Voltage Control Offset. Given a sensor input signal between 0-5 volts this feature will offset the voltage a varying amount. |
| MAX BOOST PRESSURE | Represents the maximum amount of boost pressure the vehicle can produce. |
| MAX PRESSURE FUEL | Feature allows fuel adjustment when Pressure zone is active. |
EJK Electronic Jet Kit Gen 3.5 tune module for Yamaha YZF R1 2002-2008
Plug-and-play tuning module
Easy to adjust
Ready to install, comes with model-specific plugs
Smart Load-Based system
Why the EJK?
Tuning Made Easy, simple. We all love the KISS principle (Keep It Stupid Simple), which is what the EJK offers. Full range tunability, without the need for a Dyno test bench or expertise. The EJK offers smart Load-Based technology, that helps you improve your bike without hassle.
What is the EJK?
The EJK (Electronic Jet Kit) module is a piggyback tuning module for motorcycles with Electronic Fuel Injection. It is installed between the vehicle computer (ECU) and the fuel injectors, altering the signal from the computer to the injectors in order to improve the bike's performance and fuel response.
Most bikes come from the factory with sub-optimal fueling. They are tuned to the needs for environmental approval, not for optimal driving. And the ECU's are a closed system, you can't change anything to it as user. The EJK injection module changes that, allowing you to make small changes and giving you a stable platform to optimize your bike.
What makes the EJK stand out?
Smart technology at a low price. Most tuning module require expert knowledge and a thick wallet. The EJK keeps tuning simple, thanks to Load-Based Technology: the module changes fueling according to the demands placed on the engine, the (mechanical) load. It offers true tuning, at a very modest price. Simple, Easy, Affordable.
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
How does this EJK work on so many R1 model years?
Easy: that's the smart design of EJK. The EJK module is load-based and hence less model-dependent, without sacrificing on effectivity. Most modules are Alpha-N tuning: they use a 'dumb' Excel-style mapping with RPM and Throttle Position to decide which value to modify the fueling with. Clever but dumb at the same time, as it's not flexible.
The EJK is load-based, adjusting the fueling according to the engine's load, which makes it much more universally applicable and effective.
For use on:
Yamaha R1 2002-2003
Yamaha R1 2004-2006
Yamaha R1 2007-2008
| Feature Name | Description |
| NONE | Feature is NOT enabled and will be skipped over when navigating through features with MODE button. |
| GREEN FUEL | Feature allows fuel adjustment when the Green zone is active which is typically during idle and cruising conditions. |
| YELLOW FUEL | Feature allows fuel adjustment when the Yellow zone is active which is typically during acceleration conditions. |
| RED FUEL | Feature allows fuel adjustment when the Red zone is active which is typically during full throttle conditions. |
| GRN LWR SW PT | Feature allows adjustment of when the Green zone engages. Typically relates to an RPM value to determine if fuel adjustment should be allowed at idle or not. |
| YEL LWR SW PT | Feature allows adjustment of when the Yellow zone engages. |
| RED LWR SW PT | Feature allows adjustment of when the Red zone engages. |
| ACCEL PUMP FUEL | Feature allows fuel adjustment when the Accel Pump is active. |
| DECEL FUEL | Feature allows fuel adjustment when the vehicle is de-accelerating at a moderate to high rate. |
| GRN UPR SW PT | Feature allows adjustment of when the Green zone shuts off. Typically relates to an RPM value to determine if fuel adjustment should be allowed above a mid-range cruising RPM. |
| VCA SW PT | Represents transition between factory open loop and closed loop. When the LED display shows a solid BLUE light in the 8th position then the controller is interfacing with the ECU closed loop mode. Fashion rarely needs to be adjusted. |
| CLOSED LOOP FUEL | Feature allows fuel adjustment when the VC zone is active. Feature implements an indirect fueling method where the O2 signal is being manipulated which causes the ECU to make fuel changes. Only affects fueling while ECU is in closed loop mode. |
| VC OFFSET | Voltage Control Offset. Given a sensor input signal between 0-5 volts this feature will offset the voltage a varying amount. |
| MAX BOOST PRESSURE | Represents the maximum amount of boost pressure the vehicle can produce. |
| MAX PRESSURE FUEL | Feature allows fuel adjustment when Pressure zone is active. |
