Ducati custom build Mark II
Discussion
poo at Paul's said:
How about for colour scheme you do a black frame then split the tank with a black lower half then coloured top section to trick the eye into seeing a flat bottomed tank, more like a traditional café racer would have and to tie up with the seat unit?
If you want to see an example of what I mean, have a look at the Yamaha XSR900 Abarth special edition with all the carbon seat etc. you'll see the bottom of the tank done black, top in the grey colour and really makes the tank look old skool flat bottomed. Very clever. Would work well on yours but you'd need to do the frame black I think.
eg here
https://www.ebay.co.uk/itm/Yamaha-XSR900-ABARTH-20...
Just saying, like!! If you want to see an example of what I mean, have a look at the Yamaha XSR900 Abarth special edition with all the carbon seat etc. you'll see the bottom of the tank done black, top in the grey colour and really makes the tank look old skool flat bottomed. Very clever. Would work well on yours but you'd need to do the frame black I think.
eg here
https://www.ebay.co.uk/itm/Yamaha-XSR900-ABARTH-20...
Edited by poo at Paul's on Tuesday 13th November 08:07
I have been unhappy with the silencer... and decided to make one in Stainless Steel, out of one I bought off Ebay, this time re-packable, and also with a removable baffle for MOT time. Even without the baffle, its acceptable (with my ears!!) with just the resonator now its packed properly.
The bike is now running, it sounds fantastic! I will post a video soon! I balanced the carbs with the vacuum gauge. I prefer to use a single gauge as its far more accurate… if ever you have a bank of gauges connect them up to a single vacuum source and check they are calibrated. most are WAY off! with a twin I simply use a “T” piece and clamp the pipes individually with a pair of pliers, alternating from one cylinder to the other… the clamp in the picture is to damp the needle on the gauge. Its a VERY accurate way of doing it… makes a huge difference to the tick over.
Below is the initial configuration of the Ignitech ignition.
Below is the initial configuration of the Ignitech ignition.
Well here you go, just a short clip... I did take it up a very short private road and it pulls well and sounds... LOUD, but awesome!
https://www.youtube.com/watch?v=EGIS60YPn7w
https://www.youtube.com/watch?v=EGIS60YPn7w
I managed to get a Ducati Performance map and popped the advance data into Excel, along with the data from the Ignitech file. here is is in graph form. the Ducati map has 32 points on the RPM scale that are mapped, and the ignitech 10, which I feel is plenty. A lot of early electronic ignition bikes had two... tick over, and full advance! my old Jota jumped from 10 degrees at tick over, to 34 degrees at 2000 RPM!
there is an alarming blip in the Ignitech graph which may need some investigation when its on the road. the Ducati map is what I am used to seeing on other cars I have played with.
It will be easy enough to replicate the Ducati figures into the Ignitech map though... my mate showed me how to interpolate to match the different scales... but I glazed over after 15 mins!!!
there is an alarming blip in the Ignitech graph which may need some investigation when its on the road. the Ducati map is what I am used to seeing on other cars I have played with.
It will be easy enough to replicate the Ducati figures into the Ignitech map though... my mate showed me how to interpolate to match the different scales... but I glazed over after 15 mins!!!
As always there are snags on a build like this… I have always been worried about the head of fuel the carbs will get… it was OK with a full tank, but not enough to give me a reserve position on the tap. This was overcome by fitting a small electric pump, but this showed a weakness in the float needles in the carbs, Any leaks here is above the engine so I bought some new and genuine float needle valve assemblies and set the float heights to 14mm with a gauge I quickly made up. Easier to do if you clamp the float into position with a washer… no leaks after they were fitted…
A couple of pictures under the seat…. the alloy rod is the tank stay velcro holding it in place!
wiring is nice and simple on this one! I mounted the ignition module on stilts with small rubber feet ( i used the original ones from the multistrada clocks) to insulate it from vibration.
This is probably the last post for a while... I will update again once its been road tested...
anyone interested, this is the link to my blog, where I have my other projects...
https://jtccc.wordpress.com/
But for now, the hunt is on for another project... I would like it to be another Ducati, but I am not ruling anything out! so if anyone has anything at the back of their garage gathering dust that they might sell... get in touch!
wiring is nice and simple on this one! I mounted the ignition module on stilts with small rubber feet ( i used the original ones from the multistrada clocks) to insulate it from vibration.
This is probably the last post for a while... I will update again once its been road tested...
anyone interested, this is the link to my blog, where I have my other projects...
https://jtccc.wordpress.com/
But for now, the hunt is on for another project... I would like it to be another Ducati, but I am not ruling anything out! so if anyone has anything at the back of their garage gathering dust that they might sell... get in touch!
I managed to get the raw data from some Ducati ECU files. I have colour coded it to see the pattern of the values in a visual format (isn’t Excel brilliant!) Across the top is the RPM, and down the left is the TPS values, The lower values are throttle closed. these follow what I would expect to see on a 3D advance map. I hope to replicate these in the ignitech map on the bike. Just need some decent weather to ride it!
Edited by buzzer on Sunday 10th February 10:15
I normally start the hunt for a new project in the summer, ready for the following winter to be sure I have something to work on... this year its all been a bit quick! I have not quite finished the Multistrada when along came another Duke... an ST4s this time. it runs well, bit is a little tatty ( the pictures make it look better than it is...) It was a bargain price, so I could not resist it!
For the moment I am going to sell off some of the bits I definitely know I wont use, and then put it to the back of the garage until the winter, when I will start the build in earnest... thats not to say I cant do little jobs :-)
not sure what this will be just yet... time to think about it!
If there is interest I will do another build thread?
For the moment I am going to sell off some of the bits I definitely know I wont use, and then put it to the back of the garage until the winter, when I will start the build in earnest... thats not to say I cant do little jobs :-)
not sure what this will be just yet... time to think about it!
If there is interest I will do another build thread?
Buzzer
Very interested. Some ideas that I have had on doing an ST4S included swapping the swing arm out for the single sided on from a Monster S2R as its a bit different. Perhaps a seat unit from an RSV 4 / Tuono V4 single seat type. Maybe a tank from a 999. With a Katana Fairing and instruments in the fairing but in a heads up type display onto an opaque screen.
Food for thought there.
Very interested. Some ideas that I have had on doing an ST4S included swapping the swing arm out for the single sided on from a Monster S2R as its a bit different. Perhaps a seat unit from an RSV 4 / Tuono V4 single seat type. Maybe a tank from a 999. With a Katana Fairing and instruments in the fairing but in a heads up type display onto an opaque screen.
Food for thought there.
Been out and had a good run of around 50 miles today, took a few pictures... The bike runs REALLY well, nice and smooth pick up, and revs to the red line cleanly, I am pleased with the result. I would say its down on power over the injected bike, but not much, and its enough for me!
A couple of things I need to change... the mirrors are crap in that position, and also the throttle is too slow, I need a faster action, and will be on the lookout for one next week.
A couple of things I need to change... the mirrors are crap in that position, and also the throttle is too slow, I need a faster action, and will be on the lookout for one next week.
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