fuel tuner

[pcx888]

Has anyone used or heard of this fuel tuner. EJK Gen 3.5 Fuel Controller. There pretty expensive I need some opinions before I buy one.

[Pcxdemon]

No, no experience on it. Would love to know more about it though. I still ride mine, it’s awesome. Done about 20000km on the kit and still going strong ..

[waspmike]

I used to sell the early ones. What are you trying to do?
It won't make a stock bike go any faster from my customer's experience.
It would be cheaper using a slightly larger injector if all you want to do is richen it up a bit.
That needs a bit of research as I don't know what size the stock injector is. We need to read the code on the stock one.
Yuminashi has some info on their site about injector flow rates for engine capacity and fuel and the number of valves etc..2v vs. 4v. E10, E20, non ethanol gasoline etc.
EJK is less effort to play with at a price.

[pcx888]

I have a stock bike with aftermarket pipe. Should I change fuel injector. Or add the ekg eco since I know it running rich.

[Conelite]

Personally, if you are going to mess with the AF, I would recommend a wideband along with the Tuner. I have intake and exhaust, and just reading the plug it runs a pinch on the lean side.

Only real benefit for a stock bore bike IMO would be is to raise the rev limiter assuming you are bouncing the limiter often. Maybe push the timing advance a bit.