| Author | Message | ||
     Bob_thompson |
As Spectrum stated in another thread "The latest calibration is 05Z (last three digits only). There is no recall or program for this update. So to get it you have to just take your bike it into a dealer and have them hook it up to the Digital Tech II computer. The update will not show up any other way". With that said can anyone here say with some amount of credibility just what this latest flash is supposed to accomplish. My current flash (the 03Z) has my'08 1125R running very well in deed. I have not had any of the problems,like many others,except the rear turn signals. Now this may be something to do with my being at 4500 ft. altitude or not. I have even tried my own muffler system, elaborated on in other threads, and open inner air box with great results. AFV's went from 94.5 F&R to 100 F&R and it runs the best it ever has with these "improvements" Does anybody think it would be worth my getting this latest flash? What, if any, changes have you seen, good or bad. I wonder why BMC has not issued a recall on this particular update. Sorry about being long winded, I just do not like dealing with my local dealer. I actually had to lead them to Digital Tech, to get my latest flash. They're good people, but just not Buell oriented very well. Thanks much for any replies, Bob | ||
| Bikejunky |
Bob- The 05Z flash is supposed to take care of ride-ablity at 4000RPM and less. It did smooth out my motor at between 3k and 4K although I don't usually ride under 4k unless I am really forced to by traffic. Below 3K (just me testing it out for my own knowlege)I really didn't notice any difference. On a side note, I did also notice the battery seems to stay charged for longer periods of time now as well but I don't know if this was something done in the flash update or because the weather has warmed up. | ||
| Spectrum |
Bob, I can't speak to specifically what it does, but here are some pre and post flash dyno pulls with the 03Z and 05Z. As you can see there were some positive changes. Pre-flash (03Z)  Post-flash (05Z)  Note both runs were with the AFV's at 100. Closed loop was disabled on the 03Z run, which may explain why the A/F looks different in the lower RPM's between the 2. I have put quite a few miles on the 05Z with closed loop disabled and it does seem to run as well or better than the 03Z did. Like you 03Z worked very well for me as well. | ||
| Ccmdoc |
My problem is convincing them to hook it up to the Digital Tech II because they dont believe that it will be there if not "on the computer". | ||
| Zac4mac |
I work at a Buell dealer, granted in Parts, not Service, but I've watched. H-Dnet still shows 04z for 08 and 11z for 09s. We know, anecdotally, that the flash is at 05z and 12z respectively. The new flash will show on the DT-II when initialized on the bike. Just ask nice, bet the Service Writer a soda. Z | ||
| Bikejunky |
+1 ZAC | ||
| Bikejunky |
Here is a digital tech II printout for my 05Z update  | ||
| Fresnobuell |
Any real documentation about this latest flash? BMC should be specific about what the flash(es) do both positively and negatively. This would let the customer choose whether he wants to go forward with the flash. Too much secrecy in my opinion. | ||
| Bikejunky |
I don't know if this will help any but this is what the 03z flash did vs. the 02z flash. 1. On vehicles that are covered under the product program, verify the current calibration using Digital Technician II and reflash the calibration if updated calibration is not present. See Table 1 for calibration numbers. 2. System functions included with new calibration: Improved cold start Improved driveability Improved fuel mileage Reduced heat Accessory port is controlled by the ECM and will be turned off if the ECM reports a deficit on the charging system. Do not install accessories directly to the battery or anywhere else on the bike except the accessory plug. ECM will now control cooling fan operation independently and is regulated by coolant temperature and battery voltage. Idle RPM is now impacted by inputs from coolant temperature and battery voltage. This may raise the RPM slightly if the programmed conditions are met. Under normal operation the idle will remain at 1250 RPM. It is normal for the fuel pump to cycle periodically to maintain fuel pressure after key off. The amount of time allowed for this has been reduced from 20 minutes to 10 minutes maximum | ||
| Bob_thompson |
Bikejunky: that is in conjunction with what my 03Z flash did for mine too and it improved things greatly. Spectrum: good numbers for H.P. and torque with the 05Z but if I'm reading the two charts correctly the A/F ratio is above 15/1 on the 05Z and below on the 03Z between 3&4K rpm's. 03Z actually looks better up to 5K and both look fairly good at about 14/1 from there to redline. Was it due to disconnecting the 02 sensors? I'm still a little confused and as of right now I think I'll pass on the 05Z flash considering how my bike runs. Also agree completely with Fresno. I too would like to see someone from Buell corporate explain a little more in detail what we're getting. Anonymous? I agree with Zac also on the dealers and I'm always pleasant with them but what in the world did I miss with the 04Z flash? I guess I've been riding too much since the weather got real nice. Bob, and thanks guys. (Message edited by Bob_thompson on May 31, 2009) (Message edited by Bob_thompson on May 31, 2009) | ||
| Bikejunky |
badwebbers - I searched high and low on H-dnet today (slow day at the dealership) and couldn't find any mention of the 04z or 05z calibrations other than they are listed as updates in the Digital Tech II update literature. I will, if I have the time tomorrow, try to get through to tech services and see it they have any better input for us all. | ||
| Bob_thompson |
Thanks much Nate(Bikejunky), you just might have the "connection" to Buell corporate we're looking for. And thanks for all the others input. Good job guys. Update: 10:30 MST. I checked the archives and found eight threads on the 04Z flash and it seems to still be somewhat of a mystery. A few thought it might have been for the Low fuel light consistancy. Not something I worry about. Hope Nate finds something. Come on Anonymous, please chime in when you're not busy. (Message edited by Bob_thompson on June 01, 2009) | ||
| Geforce |
I had the 05Z flash update done on mine Friday. No issues, I can't really say if it made a huge difference. Not sure, bike runs like a champ and I love it. Good low range cruising and I rode it 500 miles this weekend. Still a happy BMC customer.  | ||
| Usmoto |
I don't know what flash I had before the 05Z but I can tell you after this flash it's like riding a completely different bike. Got the flash just a month ago after an initial try last year by the dealer. Second try worked. Bike's bucking below 4K is gone. Very smooth throughout the rpms. Starting cold used to take 2 tries every time, now starts on first try. Gas mileage went up from 35 to 45. ( and I get on it all the time). Temp went from average 195 to 185. I was very hesitant to get the latest flash because I got used to the "old bike" and was wary of how it would turn out. I'm extremely happy with the "new bike". I can't imagine if an improved flash comes in the future, this bike is absolutely a blast to ride now. I've been a Bueller since 2004 when I bought a Firebolt and I can tell ya that this is the best Buell I've owned yet. Rock on Buell!! | ||
| Bob_thompson |
Clarkjw, care to elaborate? You've just hit us with a teaser. Aftermarket maybe? | ||
| Blake |
Clark's posts were removed. The particular venture he intends to promote has been banned from this forum due to repeated unethical/problematic behavior. Thank you for understanding and for helping to maintain the integrity and honor of our little corner of the internet. | ||
| Bob_thompson |
Blake, understood. Would it be possible for you or Court, with your presumed connections with the mother ship to ask someone nicely from BMC to helps us understand these recalls/flash updates a little more then all the people on this thread who are trying to help us? I have received detailed recall letters from BMC and had all those done and I applaud them for that, but these non recall updates are still somewhat of a mystery. Is there a reason we might not be aware of for not keeping us informed on those? Thanks for starting and helping us have a great forum. Bob | ||
| Teach |
Good point Bob, it would be nice to be able to give some details on what the flash will do. | ||
| Bikejunky |
Finally got a reply from tech services. The 05z update: "allows the ecm to recognize a few trouble codes not recognized by the ecm in the previous flashes" "updated 1125R calibration has to do with slight software adjustment for mid-range smoothness, not a major change but it helps" Hope this helps. The person I spoke with at tech services actually had to contact the engineers to find out that much. Currently there is no printed explaination for the exact changes availiable. Hopefully this helps a little. | ||
| Teach |
Thanks Bikejunky! | ||
| Court |
Just . . . and entertain me here . . . for fun . . . IF . . . IF . . . you requested information about programming details from any other manufacturer in the world . . . car or bike, you choose . . . .
Cool beans! | ||
| Bob_thompson |
Thanks also from me Bikejunky. And for Court: You are quite right my friend, I believe you would not get any information from any other manufacturer on "programming details" and not what we are looking for. I, and some others, were just wanting to know what these various updates/recalls were supposed to correct. I believe also that Erik and BMC want us to have the very best motorcycle they can produce and have shown as much many times. We all remember what they did personally going to a dealer in Florida or somewhere south last year to correct a problem. Outstanding! With that said they could enlighten us without giving away any proprietory information. I truly love my 1125R and BMC and just want the very best bike they can give me. Pretty close already. I truly commend all who gave us this motorcycle and all who contribute good info on this fine forum. Thanks much Court and all involved. | ||
| Fresnobuell |
With that said they could enlighten us without giving away any proprietory information Agreed. I think BMC owes the owners a complete, accurate description of what the flash impacts--that is IF they want us to know. | ||
| Brapbrapbrap |
Court Posted on Tuesday, June 02, 2009 - 03:09 pm: Just . . . and entertain me here . . . for fun . . . IF . . . IF . . . you requested information about programming details from any other manufacturer in the world . . . car or bike, you choose . . . . What do you think you'd get? How long would it take to get an answer? . any answer. Cool beans! I can think of zero cases that a software upgrade on a car cycle or anything for that matte is a secret. Many dealer employees may not know whats in it, but thats very different than wanting to keep it a secret. Unless its something serious like Cams that are installed backwards.} | ||
| Fresnobuell |
Many dealer employees may not know whats in it That could easily be solved by a bulletin. One would hope that before a flash is released to the public, it is thoroughly tested. BMC should know exactly what's going on on many fronts--ridablilty, economy, power, heat. why not shed as much light as possible on what BMC is doing to make our bikes better? | ||
| Bikejunky |
How much more specific does everyone want. It senses engine trouble better and smooths out midrange performance. | ||
| Ponti1 |
Unless its something serious like Cams that are installed backwards. Are you implying something here? In case you hadn't realized, the notion that cams are installed backwards on 2008 models is retarded and based on no fact... | ||
| Spectrum |
I think it was a joke Ponti1. BikeJunky. Looking at the raw data dumps, it doesn't look like any changes were made to the fuel or spark tables. So curious what was changed to "smooth out the mid range". I've heard rumors they fixed some of the throttle response issues with the noid, could this be the change they are talking about. Also did the engine trouble code changes address the fuel, CEL problems we've seen on startup in colder ambient temperatures? These are some examples of specifics. If this flash addressed specific known problems, would be nice if BMC let us know that. | ||
| Zac4mac |
I doubt it addressed the LFL/CEL at cold(~40 dF) starts. I got the 05Z flash a couple of months ago and still have an historic DTC, b1005. I haven't seen the combo pop up lately tho with the warmer weather, I expect the historic to disappear soon. Z | ||
| Chevycummins |
No secret with the updates in the GM world. It states what problems are corrected with the new flash. Also if you perform a flash and it has a negative effect for that persons driving style you can go back, but it will require a call to GM to get the VCI # of the old program. It makes no sense to me that updates are released to the dealers but they don't know what problems they correct. I being a mechanic want to know what is being done to my bike. |
