My bike makes funny noises! Listen! Not sure if fueling, ignition, other

[switchMode]

So I emailed tech support and the long and the short of it was buy an LCD unit or don't bother.

I'm not going to do that, but what I might do is hook up the laptop in a backpack with screen recorder and correlate the time with a gopro. That should give a pretty good idea of what the PCV thinks is happening.. And make for some interesting visuals haha.

The backfiring I'm pretty sure was just overrun as when I got the bike it only happened on decel, the lumpy throttle at various speeds has always been there though. It probably is a faulty thing somewhere tbph, hopefully recording will show an AFR of -99 or an RPM of 99999 or something so I can pinpoint wtf is going on.

[hayd3n]

does your bike have pair valve????

[switchMode]

Yeah and I did this to it a while back http://www.kawiforums.com/ninja-650r...-easy-way.html

Just managed to do a short recording and have found *an* issue, not sure if it's *the* issue but it does explain why my autotune trims have been weird lately. Video coming soon

[switchMode]

Numbers go RPM, % throttle, speed (mph?), gear, duty %, fuel trim, ignition trim and AFR

That 0.00 / 9.99 / 14.xx number on the bottom right is the AFR, and 9.99 is also the error code for not plugged in although I don't know why it's doing the other two things.

Apparently removed that noise from 4-6k entirely, although it still sounds really harsh at high rpm. Probably running lean.. I think the autotune not working but still trying to trim is a big clue.

[ducatilover]

You may want to figure out why your O2 sensor isn't reading, it may be needing to be calibrated, most widebands need calibration from time to time and especially if the unit has lost power.
Did you do the de-snorkel mod?
Have you looked in to the IAP mod also?

[switchMode]

You may want to figure out why your O2 sensor isn't reading, it may be needing to be calibrated, most widebands need calibration from time to time and especially if the unit has lost power.
Did you do the de-snorkel mod?
Have you looked in to the IAP mod also?

Yeah I did the desnorkle mod from that same link at the same time. I remain convinced the bike was already loud enough to not need it but hey loud pipes save lives right? (saved mine a few times in the CBD). Don't think I've even heard of the IAP mod, looks like it gives good results though so I'll give it a try.

GREAT NEWS EVERYONE!

After cleaning and soaking the sensor overnight in my solvent of choice and noticing one of the wires was a bit frayed at that end (duct tape solved everything), I plugged it back in this morning and discovered one of the wires was loose at the other end. Worried that the sensor was actually fine to begin with I started her up plugged into the laptop and after reading 9.99 for a few seconds real readings started to take over. Thanks to or more likely despite my attentions the sensor lives another day.

I have an hours ride in to town in two hours or so so good chance to see if giving the autotune free reign will actually work now.

[switchMode]

It works.

It works really well.

I want to go for another ride.

[jonbuoy]

I don´t know how long that particular O2 sensor takes to warm up but it might be that the autotune ignores the sensor until it has warmed up. Any exhaust leaks will throw the O2 readings off.

[switchMode]

I don´t know how long that particular O2 sensor takes to warm up but it might be that the autotune ignores the sensor until it has warmed up. Any exhaust leaks will throw the O2 readings off.

<60 seconds usually. Pretty sure there aren't any exhaust leaks now, the trims are much more reasonable now. Basically sat on the motorway trying everything from 5k to 8k with no issues whatsoever.. Going to have a proper ride and ring it out to see if there are any niggling problems but otherwise seems like the autotune trying to add 20% enrichment to everything was the problem all along.