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JD Jetting Fuel Injection Tuner
JD Jetting Fuel Injection Tuner

$239.95

Select your bike to see if this fuel control unit fits
Description See Also: 4 Reviews 11 Questions Fitment Part Numbers
Item #JDJ0001

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4 Reviews
5 out of 5 stars
5 Star   4 4 Star   0 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Albuquerque, NM
Durability 3/5 Ease of Installation 3/5 Performance 5/5 Power 5/5 Style 4/5
A must have for 17-19 EXCs

I have a 2018 KTM 500 EXC and my wife has a 2017 KTM 350 EXC. In stock trim, both bikes suffered from overly lean (unstable) idles, stalling and felt generally under-powered. After removing the reeds in the airbox and the two perforated screens in the exhaust tip, I installed this tuner on each bike. On both bikes, the tuners cleaned up the idle and GREATLY reduced stalling. It really improved throttle response and power (especially from mid-range and up). It’s a simple install. It will take you longer to figure out where to route the wires than anything else. Figuring out how to program it can be a little confusing, but don't let that scare you. Follow the instructions and you'll figure it out. It's worth it! For 2017-2019 EXCs don't mess around with adjusting the TPS… just get a tuner.

Verified Purchaser
SanTan Valley, Az
Durability 4/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 4/5
‘17 RMX450Z

Works well to correct the lean running conditions from the stock fuel map.
I noticed a difference in power delivery after install.

Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5

Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Great purchase

This device really turns the tunning of my bike a easy work...in many conditions I have easy access to set the bike...
great product.

11 Questions
Answered:   9
Not Yet:   1
bob3321
Q: Is this unit plug and play, other than tuning ? do you need to splice into stock wiring harness ?
11 days ago
Mattyrmx
Q: Hey so i have the tuner installed, ive got the full yoshi and airbox mod. when i give the bike a rev, on deceleration the bike is spitting flames does that mean its too lean or too rich? and how do i adjust it? thanks
2 months 13 days ago
TylerGearhead
Top 10
2 months 13 days ago
A: Contacting the manufacturer of the tuner would be best in this case.
Will
Q: Whats the difference between this brand and the EJK, Altitude Industries, or FMF fuel controller. They all look to have similar construction, and fit my 2018 WR250r, yet all at different prices??
3 months 3 days ago
Tyler Gearhead
Top 10
3 months 3 days ago
A: There will all achieve the same goal in a similar manner. The difference it cost is determined by productions cost and available features. For an example the JD tuner has 6 levels of adjustment where the Wiseco has 4.
Deeler
Q: Could this product help "detune" or remove power? For a novice racer, the bike is the right size but makes too much power (for now). Looking for a way to reduce peak HP,, smooth out the hit until more experience is gained.
3 months 11 days ago
Michael
Top 10
3 months 11 days ago
A: Quite the opposite with this unit. This will improve throttle response and add power to your bike. For the most part you can adjust your timing, but that isn't really going to detune or govern your bike.
Majestic
Q: Do you guys have this product available for the 2018 450sxf yet? Or is this product compatible with that year? 
3 months 21 days ago
Michael
Top 10
3 months 21 days ago
A: Unfortunately, they have not made this product for that bike at this time.
Yugo
Q: Does the tuner data log and down load so I can see where changes need to be made. Also can ign timing be altered.
1 year 8 months ago
moto295
Q: From what Im reading this will correct efi mapping issues when an aftermarket exhaust is put on?
Over 3 years ago
I'm looking to install a full fmf exhaust system and from what I've read you need to adjust the map settings after doing this. This will clean up and or correct mapping issues with the new exhaust?
MotoSportExpert
Top 1 Contributor
Over 3 years ago
A: The JD Jetting EFI Tuner is designed to optimize the fuel/air ratio of your machine. Depending on the stock machine, it may or may not benefit you with a completely stock motor, airbox and exhaust. Many times with the EFI systems used on the motorcycles and ATVs found today, when adding an exhaust, engine and/or airbox modifications, you will have to retune the stock EFI system to make sure you have the optimum air/fuel ratio. The tuner will not make any PEAK HP gains to your machine, but if your air/fuel ratio is not correct, you can see gains to the power curve of the machine by retuning the EFI correctly to optimize the modifications. Again, the EFI tuners do NOT produce more HP, they allow you to tune your machine to the correct Air/Fuel ratio.
dmac500
Q: Full high comp race engine and full exhaust
Over 4 years ago
Hi, i have a 2012 kx450 with full high comp race engine and full exhaust. Will this kit make this setup work better?
MotoSportExpert
Top 1 Contributor
Over 4 years ago
A: JD Jetting Fuel Injection Tuner are designed to optimize the air/fuel ratio. If your stock EFI is not properly tuned to run your modifications, than an EFI tuner would be required to get your air/fuel ratio back to optimal parameters.
Bobby
Q: Will this work with a full titanium fmf exhaust?
Over 4 years ago
I have a 2012 kx250f and I have a k & n filter on it with a full fmf titanum exhaust. Header was glowing and want to see if this will help. Thanks
MotoSportGrantK
MotoSport Staff
Over 4 years ago
A: It is completely normal for a new header to turn a bright red color when you first install and run your new header. I would recommend getting a good fuel injection tuner/ programmer because you will most likely need to re-tune after installing your aftermarket exhaust system.
Micheal
Q: Would this fuel controler work with the full 2 brothers exuast system?
Over 4 years ago
MotoSportRyanT
Expert MotoSport Staff
Over 4 years ago
A: Yes, the JD Jetting Fuel Injection Tuner would be great for tuning the fuel injection for the Two Brothers exhaust on your YFZ.
1 - 10 of 11
Fitment
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# Part Numbers
Product Variant Manufacturer Part #
JD Jetting Fuel Injection Tuner JDHQX14
JD Jetting Fuel Injection Tuner JDHQX15
JD Jetting Fuel Injection Tuner JDHQX16
JD Jetting Fuel Injection Tuner JDHQX17
JD Jetting Fuel Injection Tuner JDKTX14
JD Jetting Fuel Injection Tuner JDKTX15
JD Jetting Fuel Injection Tuner JDKTX17
JD Jetting Fuel Injection Tuner JDSX04
JD Jetting Fuel Injection Tuner JDSX02
JD Jetting Fuel Injection Tuner JDKAX01
JD Jetting Fuel Injection Tuner JDYX02
JD Jetting Fuel Injection Tuner JDHX01
JD Jetting Fuel Injection Tuner JDHX02
JD Jetting Fuel Injection Tuner JDKTX01
JD Jetting Fuel Injection Tuner JDKTX03
JD Jetting Fuel Injection Tuner JDKAX02
JD Jetting Fuel Injection Tuner JDKAX03
JD Jetting Fuel Injection Tuner JDSX01
JD Jetting Fuel Injection Tuner JDSX03
JD Jetting Fuel Injection Tuner JDYX01
JD Jetting Fuel Injection Tuner JDYX03
JD Jetting Fuel Injection Tuner JDYX04
JD Jetting Fuel Injection Tuner JDKTX04
JD Jetting Fuel Injection Tuner JDKTX06
JD Jetting Fuel Injection Tuner JDKTX07
JD Jetting Fuel Injection Tuner JDHX03
JD Jetting Fuel Injection Tuner JDHX04
JD Jetting Fuel Injection Tuner JDKTX10
JD Jetting Fuel Injection Tuner JDKTX11
JD Jetting Fuel Injection Tuner JDKTX12
JD Jetting Fuel Injection Tuner JDHQX06
JD Jetting Fuel Injection Tuner JDHQX02
JD Jetting Fuel Injection Tuner JDHQX01
JD Jetting Fuel Injection Tuner JDHQX05
JD Jetting Fuel Injection Tuner JDHQX07
JD Jetting Fuel Injection Tuner JDHQX08
JD Jetting Fuel Injection Tuner JDHQX12
JD Jetting Fuel Injection Tuner JDHQX03
JD Jetting Fuel Injection Tuner JDHQX04
JD Jetting Fuel Injection Tuner JDHQX09
JD Jetting Fuel Injection Tuner JDHBX01
JD Jetting Fuel Injection Tuner JDHBX02