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The reason Guzzitech’s boss rants about The Guzzidiag suite of tools is because using them cuts into his profiteering from selling unnecessary, obsolete shit that he doesn’t even understand and often doesn’t work. Using Guzzidiag and the ‘Reader’ and ‘Writer’ programs CANNOT brick or otherwise damage your ECU. Using a correctly constructed aftermarket map allows you to achieve far more, far better, than using a shitty add-on like a Power Commander or the like. Quite simply it is my belief that your problems could likely be fixed by simply tuning your bike correctly. Start at the beginning with valve lash then go through with throttlebody balance and TPS adjust and it’ll probably be golden. Don’t be tempted by stupid crap like aftermarket air filters and ‘Sensor foolers’. Just tune it correctly first. If it’s still giving issues they will be a lot easier to identify rather than just going for the ‘Scattergun’ approach to diagnosis.

Thank you chaps. Monaco GP just finished so heading to the shed to follow your guidance. I did put it on charge for a while and it started fine so that was a relief. Expensive weekend. The boy's kart is in bits right now and needs parts... Thank you again. I'll just add this pic from earlier today. Met my bike's brother from another mother...

Make a good ground cable from regulator to the engine while your having a little inspection. More options available if desired . Cheers Tom.

Well to follow up on all the troubleshooting I narrowed it down to a bad fuel pump. Size (OD) of the Quantum fuel pump was larger than the original (Pierburg Made in USA????) so the rubber isolator boot would not work. Had to use some turbo hose to get the attachment clamps to fit the pump mount properly. Kiwi-Roy schematics for troubleshooting were a lot of help, as were all the other suggestions from you guys. Thanks again!! Now the idle is running low, around 900 rpms so need to figure that out. This bike is pissed at me for moving it to another part of the state!

This is not just for you but for everyone : any charging system is not meant to charge a completely discharged battery. Recharge the battery before working on a bad charging system.

FWIW , in Ky. & Tenn. (and probably all the Southeastern States) these would be fiddles and not violins .

Removing the plate will drop the ring gear and it’s carrier out but it can be quite difficult because of the sealant used on the shim and gasket. Persevere with the pinion carrier. Turn it ro the wheel side is uppermost and then use an old screwdriver to get in behind the pinion carrier flange. A couple of lust blows with a hammer will move it a couple of mm and it can then be levered out using two flat bladed drivers. If you persist in pulling the flange you will likely need an expanding puller to fit under the splines in the crownwheel carrier and can either push on the spacer or pull on it using a bridge.

Hi guys. Thank you again for the guidance. Here's an embarrassing admission. Just looked in on the bike and noticed the battery had yet to reach full charge (Optimate connected to pigtail). Upon inspection noticed the negative terminal had become very loose. I'm now hoping that this 'Mechanic 101' error / oversight is to blame. I'll still follow your guidance as it's all learning, but I've fingers crossed for an easy fix... :-)

Remember , we are nowhere near you or your motorcycle . All we give you is our opinion . It is up to you to figure out what needs to be done.

Those regulators aren't the greatest. And the stator might go because of it. Don't ask me how I know that.

Once restarted, also check that the tach is not erratic and the headlamps/brake light/horn work. This fault combination indicates a bad Relay #2 which also supplies the reference voltage for the charging system.

Yer battery’s gone flat because your regulator rectifier has shat itself.

The old gal is outfitted. I did some modifying of the 1/4" alum.plate the po made brackets to fit the Give Wing Racks. The mounting hardware can now be removed as an assembly by removing 3 bolts on each side and now retains the factory rear blinkers. Not sure about that top case, wish it could be moved further ahead instead of being perched in the back 40. Now that i wrote this, i'll take a closer look for that possibility. Will be interesting to see what this kit feels like on the road loaded.

There has always been between Ducati owners friendly banter about the faster color. All I know is it is fast enough for me. I'm blown away how the 916's have appreciated in value. This one seems like an excellent example of one well cared for. Somebody will get a beautiful bike...and that SPS tail does jazz it up nicely.

We have a member here that was told by those folks that guzzidiag would ruin his ECU. The fellow was elated to learn how to interface with his V11 using guzzidiag and has done it now, numerous times. As have many of us, with no adverse effects. It can be challenging to get it to connect, sometimes. With your plugs suggesting an "imbalance", it seems prudent to address the throttle body balance next. IMO, there is no advantage to perform parts of the entire tune-up, but let's work what you are comfortable with, @Drahchir

I know turning 137,000 miles doesn't seem like much to celebrate. But I'm celebrating, anyway. ( I intended this to be my 20,000th post, but I used that to reference fixing a broken link that @mikev had pointed out. As it should be, I reckon! )

I realized it immediately after I found each screw had some sealant or Loctite on them. It was fastidious to remove them, and once they were all out, the flange did not move at all. It was worth trying. I am afraid to break the casing or damage the flange. If I could hold the pinion carrier spline in a vice, with protection to not damage it, I would probably be able to do a better job. Tuesday, I will go to one of the motorcycle dealers I know, and I will ask them if they let me use one of their vice.

Pete, thanks once again for your expert opinion. Nice to have my own thoughts confirmed. One thing though, here: The programs themselves don't do any damage. What, however, is really important is making sure both the computer and the bike don't run out of volts during the transfer. In Bernd's opinion (Beard, GuzziDiag author), it is highly unlikely that anything would go wrong if the readout process were to be interrupted. A very unlikely possibility remains. The writer process, on the other hand, dare not be interrupted. Make absolutely sure that both the computer and the bike have a solid voltage supply that is not going to go flat in the middle of the process. Ideally the computer on its mains power supply and the bike battery on a charger or similar. This advice is, incidentally, included in the instructions for using those programs. Having said that, that is not a characteristic or "weakness" peculiar to the IAW writer. It is a general rule that applies anywhere in the computer world, wherever data is being written to some form of storage. For the same reason, windows has that icon in the task bar to log out a usb stick before you remove it from the computer. If you pull it out halfway through a write, it might get bricked.

No luck removing that pinion assembly from the carter. The drain plug is again full of burrs, which makes me think there is much more than what the magnet can capture. I have reinstalled the bevelled box on the bike, the rear wheel, so I can move the bike out of the way. My next move will be to bring that bevelled box to a workshop so they can remove the pinion assy. I removed all the screws of the flange, all were stopped with loctite, it was fun. I don't have a power driver, I only use hand tools... The flange did not budge either.

Since you already have some thoughts about it, do the right thing. Turbulence is a nasty ting at speed. Cheers Tom.

I have removed the bevelled box from the shaft. The pinion carrier does not come out. I don't have a bench. I hold the box by the spine, and with a soft hammer I have tried giving a few knocks on the carter to get it moving; so far, without luck. It is not the best set up, since I am holding it by hand. I think I am going to remove the flange. It may help to look at it from the inside.

Another atypical race today, atypical being an understatement. Luck always play a part in everything we do. Some people get lucky, others, not so much.

And another thing. I realise I am harping on the subject a bit, but I think I'm a little annoyed. Anyway... GuzziDiag came into being through the German forum that I am active in. There is an entire board there dedicated to the topic. On that board, there are currently 590 threads, a total of 6997 posts. Admittedly, I haven't read every single post, but I have at least skimmed quite a lot of that. It interests me. There are a lot about "having trouble connecting", quite often due to not having read the instructions properly, a lot of "can it do xxx yet?", to which the answer is generally "we're working on it", and quite a lot of creative input on the further developement of the program. What I cannot recall ever having seen is a post saying "I connected Guzzidiag, and it bricked my ECU". Or that connecting Guzzidiag caused any problems whatsoever that weren't there before. And remember (WARNING: potentially predjudiced comment!!!) I'm talking about a German forum. The rule is: complain first, then get irate and bluster and rant a lot, and then listen to the explanation. Maybe. And then explain at great length, several times, why the explanation can't possibly be right, and that there is no possible way that one could concievably have stuffed things up oneself. The point is, if Guzzidiag were prone to bricking ECUs, I'm pretty sure I would have noticed. PS: and given that I am an Admin on that forum, I can assure interested readers that "negative press" regarding GuzziDiag definitely does not get "censored". There is too much interest there in having the program work properly for that sort of bullshit.

The one of them that I rode was red, and it was faster. EDIT: ok, the one I rode might have been an ST2. It was a long time ago and I don't really remember, but it was red, and it was definitely faster.

I beg to differ...

Since I had never heard of them, I went looking. Didn't spend too much time on it, but I came up with this. I found this thread: https://www.guzzitech.com/forums/threads/v7-v85tt-9-e4-e5-diag-tool-info.25192/ apparently discussing a diagnostic device that can be purchased from here: https://gtmotocycles.com/ and what did I find down at the bottom of that page? A link back to the Guzzitech forum. Forgive me for getting the feeling that they are shit-canning a good program, GuzziDiag, developed and made available for free by a handful of intelligent, competent and engaged individuals, to "protect" their own commercial interests. I don't know how I could come up with that idea.

Hi gents, count me and my Scura in for support organizing the NL spine raid! Verzonden vanaf mijn iPhone met Tapatalk

We will never cease to be irritated about this situation. I recently had a long discussion with someone who support that Marc Marquez was only doing his race, not try to help Jorge Lorenzo, fighting VR46 for the position and nothing else. Even if VR46 felt it was inappropriate to put so much effort in slowing him down, there was nothing unruly until the time when VR46 got his boot into it. Was the crash intentional too? I think Valentino should have never made that antagonistic kick. His only chance was to fight on the track. He paid dearly for losing his cold. As for us, this will remain a subject of contention. But we need to let it go.

My original 2000 V11 Sport external fuel pump measures 111mm long by 55mm diameter (across the body where it mounts). The fuel pump I got from MG Cycle ("replacement for Bosch"/ "Quantum") is 112mm long (body between hose connections) and 52mm diameter. Three years ago, it was $55US, before shipping/taxes. I never installed it after I found my fuel pump issue was relay related. [edit: I see the price has not changed ($54.56US). There are no stampings or markings on the part and I see nothing on the website.] Here is where I got the "Quantum" name: https://www.highflowfuel.com/fuel-pump-oem-replacement-hfp-603-qfs/ [edit #2: Flow Rate: 190LPH; I could not find a flow specification for the Moto Guzzi external pump.]

That's a nice area to ride...I'll be riding thru there from Telluride and surrounding areas the 3rd week of June. Black Canyon is one of my favorite National Parks....great twisty roads on the north side!