Playing with the User Setting Tool on a 570

So I finally got this damn thing to work! Only had to take the bike back to dealership making a nice 500km road trip and leave the bike there for 3 days, to get some sort of activation code from KTM so they could flash the UST mapping in the ECU...bla bla blaa.

Anyways I yesterday started to fiddle with the tool, and it's pretty freaking nice looking software interface that comes with it. Looks like a bull blown standalone system, but I can actually only map the fueling, change some parameters in the ECU to disable or enable restrictions/narrow band lambda/fuel cut etc. , datalogging and online monitoring of every sensors in the bike like TPS, RPM, IAT, MAP, Coolant temperature, injector duty cycle, sensor voltages etc.

What really struck to me is that when I whack the throttle open TPS only shows 82% @ 3.57x V. :shock:
Is that normal or do I need to adjust the TPS on throttle body ever slightly to get it to show 100%? On my old gixxer using PC3 usb the mapping was applied correctly and the bike worked slightly better when I calibrated the TPS correctly by just loosening the torx bolts and moved the sensor a bit.

But damn I do love this little thing. My bike is only full FMF system with Akra slip-on, DNA air filter with cutted shrouds and hole in the seat + aggressive ignition on mapping switch. When I slightly increased the fueling above 2000rpm and 15% TPS all the way to 10000rpm and full TPS the bike started to pull like fkn freight trein.

Now I need to quickly take it to a dyno and get it mapped correctly there. Maybe even get the head ported before and install 13.5:1 CP piston in it too... 8)

I think thats gonna take a loooong time to happen.

Haven't hit the track yet properly with the bike now after new wheels, slicks, revalved suspension, Beringer brakes and slight power increase. But I can tell that from the street experience I have now it's thousand times better than what it was in stock trim. Only thing left to hit the tracks properly is to sort out the head shake problem at +120kmh speeds and dyno tune.

Haven't checked the sag yet, but I think the rear compresses too much and front end is getting too light. Changing the offset from 16mm to 14mm and raising forks 3mm cured most of it and made the bike handle like dream otherwise.

But I'm still curious about the 82% TPS at wot. Anyone can chime in?

So I just loosen the bolts that hold the TPS in it's place and wiggle it a little bit? It reads perfect 0% when throttle is closed completely, just 82% only at WOT. Butterfly is completely opened as I can't open it anymore.

Service / Repair manual did not point out how to adjust TPS. Just only to check voltages and short circuit problems if the TPS showed under/over voltage when measured.

Help.

I don't wanna destroy my precious tractor.

Actually I don't know. It did not show any button to do so, I think.

Me thinks that if I move the TPS sensor mechanically too much it's gonna be out of whack easily?

E: I see nothing here mentioning TPS reset. Maybe I'm blind or it can't do it? http://www.ktm.com/uploads/media/69029096140en_OM.pdf

It shows only the mapping value that can be selected and changed. ie. TH6 column throttle position value can be anything from 0 to 100%. Unchanged it comes like that: 2%, 5%, 10%, 20%, 50%, 70% TPS values. I would liked to have 8 or 10 columns to get more resolution and accurate mapping but guess the tuner can work with those too...

Still puzzled about the TPS issue. Maybe I'll to try ring the dealer who flashed the UST map in it and ask if they knew something, probably not.

Davo said:

Wouldn't you only need extra columns (finer granularity) if there is a noticable dip in Air Fuel Ratio readings between the cells or columns in the Fuel map?

Click to expand...

Actually you are pretty much right here. If the columns are fine enough to tune it nicely for part throttle and WOT then the current resolution should be enough.

Davo said:

The EFI computer I am familiar with requires a procedure to set the 0% and 100% by turning ignition on unplugging the TPS connector, plugging the TPS connector back in waiting 5 seconds to learn 0%, then twist the throttle wide open and hold for 5 seconds to learn 100%. I guess there is some sort of procedure with the Keihin that you need to do to learns the 0% and 100% Throttle settings. I am guessing it needs a procedure as not all resistors (TPS is just a variable resistor) are the same and not all Throttle Bodies are exactly the same.

Click to expand...

Can you verify this? I can easily do that tomorrow when I get a laptop to borrow.

Great...

And the bike was few weeks ago at dealer to get the ust map flashed in it. Would have checked that too if I knew the issue earlier. Now it's too late as I'm not taking it back there. Regular KTM dealers can't do sh*t to these bikes, or thats how they replied to me. Don't know is it true or not, that the dealer also needs Husaberg approving and marketing.

I have KTM dealer near by and they have same equipment as the Berg dealer where I was with the bike...