I have never hear of a wideband lamda. Iíll have to google that one. But that you for the info.
Ok I just googled it. I see itís a gauge. So does it go in place of the O2 sensor? Do I ride with it on? Again Iíll have to google how to use it but your seem knowledgeable. Thanks again.
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I would suggest to use some simple wideband lambda like for ex LC-2 from Innovate Motorsports (I'm using old LM-01 still and even nowadays it's quite accurate and usefull). For a simple tune like adjusting air fuel ratio after basic mods like exhaust, intake filter, you don't even have to use a datalogger, running few full throttle pulls on 3rd or 4th gear would be engough. Just remeber at which RPMs bike runs lean or rich - really it's not a rocket science. A rule of thumb is to run 12,5:1 - 12,8:1 at WOT.
If you got option to disable your stock sensor in a bike for tuning, that's huge advantage - in this case you can put wideband in place of stock sensor. I'm pretty sure they will have the same thread - general standard it M18x1,5 with 22mm hex for a wrench.
More advanced level is to properly tune acceleration enrichment, but I don't expect that exhaust and intake will make a significant impact for acc enrichment. But it's worth to check it. I've saw engines tuned perfectly on full throttle, but havig really poor throttle response due to lean ares at throttle fast opening.
Once you will get a lambda and you will run few tests you will see that's pretty easy and fun to make some adjustmenst on your calibration.
Today I will take a look on FT ECU software, hopefully it will start without hardware, just to check what options are available in this software. But keep in mind that you're a lucky one using FT ECU (real calibration change) not a PowerCommander (which is a piggiback tool, trying just to fool your ECU instead of proper reflash).