Ducati Monster Forum

Moto Board => Tech => Topic started by: NAKID on January 20, 2016, 12:03:25 PM

Title: RBW strangeness
Post by: NAKID on January 20, 2016, 12:03:25 PM
Quote from: Speeddog on January 18, 2016, 10:45:30 AM
I'm impressed that the throttle maps are easily tweaked.

Is the map 'capped' at 1:1 or something similar, so you can't fat-finger a table entry?

On the M821 I rode, the 'Urban' map felt like how you're describing the 'soft' map.
My first impression was that it'd be a bad thing, it was so freakin' slow I'd be afraid of getting squashed by a Yugo.

Does the KTM ever do any throttle control on it's own?
The 821 would occasionally blip the throttle a tiny bit when I was rolling to a stop with the clutch in.
I don't remember the exact scenario, it may control the idle speed, and blipped to avoid a stall.
I found it extremely disconcerting.

Kind of a thread jack, but I don't have this experience on my M821. Granted, I have the Termi's with the UPMAP, but no RBW issues. The urban map I have used a couple of times, mainly for a quick change to the ABS/TC settings in the pouring rain. Other than that, I commute with it in Touring mode 99.9% of the time.
Title: Re: RBW strangeness
Post by: Speeddog on January 20, 2016, 12:14:37 PM
I test-rode a KTM 690, and some commented on some of the RBW aspects in the 'power of orange' thread.
Seemed pertinent to split it out here, hence Nakid's post above.

I've noticed (what is to me) strange behavior on some of the RBW bikes I've ridden.
Title: Re: RBW strangeness
Post by: DarkMonster620 on January 20, 2016, 12:22:01 PM
Quote from: Speeddog on January 20, 2016, 12:14:37 PM
I test-rode a KTM 690, and some commented on some of the RBW aspects in the 'power of orange' thread.
Seemed pertinent to split it out here, hence Nakid's post above.

I've noticed (what is to me) strange behavior on some of the RBW bikes I've ridden.

Many 2015 M821 or HM821 needed a SW update or either the Termi Upmap to take away the behavior; some needed to be replaced and reset . . . The ones I installed teh Termi+UM= NO issues, stock[9] or homologated Termi[2]= SW update and/or RBW grip replacement
Title: Re: RBW strangeness
Post by: Slide Panda on January 20, 2016, 12:26:58 PM
So for some KTM context on RBW bikes - some twitchyness at low RPMs is down to their O2 sensor and the ECU dicking with things half a second out of tune with human desires FWIW.

Title: Re: RBW strangeness
Post by: Speeddog on January 20, 2016, 12:49:47 PM
Caveat: I've been riding bikes for 4 decades, using a cable between the throttle and the butterfly/slide.
At worst, they've been CV carbs.
Same for all of my cars.
No TC, no ABS, none of that.
So I'm not real big on the concept of a computer sitting between me and the mechanical bits.

I rode an 821 Hyper and an 821 Monster that were both bone stock, AFAIK.

The Hyper was a customer bike, and the Monster was a dealer demo bike.

Both had what I call a 'dead' throttle, the first bit of throttle rotation does next to nothing.
It's the amount of throttle that I would normally use to get the bike rolling from a stop.
Then the next little bit of throttle does quite a lot.
Same sort of thing on my GF's 328 sedan.
Freaks me out.

You feed in some throttle, nothing much happens, feed in some more, then there's a tiny bit of response.
Depending on the situation, like "I'm making a left turn in the city, I need to get the make the beast with two backs out of oncoming traffic!", you crank it a bit more, and it takes off.

I've ridden an 899Pani and a MTS12 and they didn't behave that way.

The KTM 690 (2015 Duke) had a 'soft' throttle, the normal 'get the bike rolling' twist did produce some response, but less than I expected.

Title: Re: RBW strangeness
Post by: Kopfjager on January 20, 2016, 01:06:49 PM
When I first got my 690, the RBW was terrible. It had big time 'dead throttle', if I cracked it open there was nothing (not like you'd expect from a big single) it drove me crazy, that and it would cut off coming to a stop if you didn't keep the rpm's up.  [bang] After a lot of tweaking, it leaps up at the flick of my wrist now. I'm still not a fan of RBW.
Title: Re: RBW strangeness
Post by: NAKID on January 20, 2016, 01:13:56 PM
Quote from: Speeddog on January 20, 2016, 12:49:47 PM

I rode an 821 Hyper and an 821 Monster that were both bone stock, AFAIK.

The Hyper was a customer bike, and the Monster was a dealer demo bike.


I think that's the issue right there. I haven't had an issue with this, but I got the bike with the Termi's and UPMAP already done so I have nothing to compare it to.

Regarding your GF's 328, I have the same experience on my wife's Durango. Stop signs are especially annoying. It feels like I have to make it jump off the line because of the dead spot at the bottom. Definitely doesn't engage smoothly.
Title: Re: RBW strangeness
Post by: duccarlos on January 20, 2016, 01:31:23 PM
Can you update the SW to the Termi UM without having a negative impact?
Title: Re: RBW strangeness
Post by: koko64 on January 20, 2016, 02:50:51 PM
I have noticed a few reports of some new Hypers having very inconsistent RBW to the point of being dangerous. There were examples of bikes suddenly throttling down in heavy traffic or cutting out mid corner then throttling on again, giving the riders a leathers soiling moment. Owners took their bikes back to the dealers who found faulty components which were replaced. Iirc it was the TPS on most of the examples which fixed the issue.
Source was Ducati.ms Hyper section.
Title: Re: RBW strangeness
Post by: DarkMonster620 on January 20, 2016, 03:50:01 PM
Quote from: duccarlos on January 20, 2016, 01:31:23 PM
Can you update the SW to the Termi UM without having a negative impact?
For some reason the TUM took care of most of the annoyances of the "stock" M821 . . .
Quote from: koko64 on January 20, 2016, 02:50:51 PM
I have noticed a few reports of some new Hypers having very inconsistent RBW to the point of being dangerous. There were examples of bikes suddenly throttling down in heavy traffic or cutting out mid corner then throttling on again, giving the riders a leathers soiling moment. Owners took their bikes back to the dealers who found faulty components which were replaced. Iirc it was the TPS on most of the examples which fixed the issue.
Source was Ducati.ms Hyper section.
The ones I did, it was the "throttle grip", replace>reset>ride . . .

One customer purchased a Termi with upmap, just because he wanted another slip on and has never had an issue with RBW