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Hi, as chance goes I've been revisiting the engine temperature related trim functions on the Jackal, since the current temperature are below 0°C and the respective engine temp breakpoints could be reached. The Jackal is also using the 15M, so it's seems relevant to this thread. The start enrichment map and the fuel trim engine temp map were already changed several years ago on the V11 and Jackal, but at that time the logging equipment was from Innovate. Unreliable product and poor support led me to changing to the Zeitronix ZT2s. Those we hooked up to the Norge, but I got several more ZTs and mounted them on the Jackal. The basic measuring procedure was already planned last year. The ZTs have two 0-5V inputs. But, both are being used during the normal logging. The first one is attached to the TPS, as the standard input only provides for measuring TPS as a integer %-value. Which is not good enough in the lower third of the TPS range, %-values overlap the degree values. The 2nd input gets the lambda signal measured by the 2nd ZT2. So the 2nd ZT2 was temporarily disconnected and the engine temperature sensor connected instead. As mentioned above the engine temp related fuel trims are taken care of by two mechanism. The first is the start enrichment map, indexed by engine temperature and number of revolutions since ignition on. I've changed the standard 2000 revs in my BINs to 1000 a long time ago to minimize the interference during the normal logging. The index is to be understood working in reverse, to the first step is 1000-984 = 16 revolutions. And so forth, until the total number of revolutions, specified in a scalar, has passed. The fuel trim engine temp map is a 1D, only indexed by engine temperature. Both functions overlap, so a trim by this table is factored together with the current start enrichment factor. One of the pictures shows both tables. The 2nd picture shows the log of a cold start at ~65°C, which is the voltage coming from the sensor at that temperature. First line is lambda, then rpm, then TPS and then the voltage from the engine temp sensor. As preparation a look-up table voltage vs temperature needed to be created. This was done by running the ZDL software and GuzziDiag at the same time and noting down the corresponding values. The measuring procedure is starting the engine with and logging the data. The inital data, while the rev countdown is still running, is used to check and correct the trim values in the start enrichment map, then shutting the engine down and repeating the procedure at every engine temp breakpoint. Which takes 20-30 tries, as the engine temperature keeps rising by 5-8°C after the engine was shut off. Longer runs are used to get lamba values across the temperature range without the start enrichment influence. These are used to check and correct the fuel trim engine temperature table. And this opportunity is also used to re-evaluate the main fuel value at the lowest rpm/lowest TPS breakpoint, which I don't normally reach while driving. My idle speed is higher than that, but it is nicely reached during cold starts. It will take another day or so, but the first results are very good. The original values in the start enrichment map are much to rich, a lambda of <0.7, down to 0.6, is standard. Which is puzzling, as this is below the point at which the mixture will ignite at all. Good engineering by Guzzi, maybe. The corrections already made brought lambda in the range of 0.84-0.92, which I will try to equalize as good as possible. The fuel trim values are more or less finished also, at least in the range from 0° to 90°C. The higher values will be done while road logging, Beard kindly added a temperature filter function to the database program he wrote to analyze the massive data volume created by the ZT2, close to a million data points in one hour. Cheers Meinolf

We took off to Vegas a few days ago and saw Van Morrison last night. I am too tired to post any photos. Great show, 9 piece band. I've listened to Van for 50 years and despite hearing sax on all his records, I didnt know he played the sax. Great music. Some of the good ones, "Baby, Please Don't Go/Roll with the Punches", "Wild Night", "Three Chords and the Truth", "Cleaning Windows", ""Broken Record", Brown Eyed Girl", and jam version of "Gloria" with Van leaving and everyone doing a solo. No encore. Played perhaps a couple dozen songs over an hour and half. Caesars' Palace, great acoustics, little leg room.

2 pack paint, base and a hardener and a little thinner. Dries chemically not due to flashing off solvents. Tough, hard great depth but hard to apply without a booth to keep the dust and contaminants off. Takes about 30min to touch dry. I did mine outside and then put the stuff in the spare room with the door shut to let them cure in a dust free environment. Ciao

I believe it is docc. Its often hard to tell. Some use a wipe test with solvent which isn't totally reliable but powder is generally thicker and if you look at a flake its devoid of any primer. It also seems reluctant to respond to cutting and polishing and lacks depth. I have stripped a swing arm once that had been powdered and it came off in long plastic like strips when you tried peeling it like a piece of fruit instead a chipping off. The Guzzi parts didnt seem like this but I'm still inclined to believe they are powder. Not 100% sure but pretty confident. If you had a decent painted surface even if it is 20 years old you should be able to cut and buff it to pretty much the same finish as new paint as long as its not been sun affected. You just cant get the V11 frame like this. I also read it was while doing research which isn't of course definitive but made me test and evaluate. Ciao

Looks great! wth is 2k paint?

Pulled the tape off the painted parts today. I'd rate the finish quality as an 8.5 out of 10 which is about all you can expect from an amateur that hasn't sprayed 2K paint for 35 years so I'll call it done. For anyone thats contemplating whether to powder coat or paint 2K here is the difference. I realise this is straight off the gun compared to 20 year old powder but I've cleaned and polished the powder part and the protected parts of the frame aren't really much better. If you want a tough and glossy finish with real depth you can't beat 2K, the powder just doesnt compare and thats the reason I repainted the side plates and front support. I just got tired of the lack of depth and richness to the finish. The battery tray and rear swingarm are next in satin black. My original arm has quite a bit of weld spatter on it from the factory which is pretty pathetic really and the finish is quite poor now esp on the round tubes where the original rear hugger rubbed the surface. 2K V powder Ciao