1991 900 Ss Restoration (slow)

Discussion in 'Supersport (1974-2007)' started by wolfram, Jun 12, 2015.

  1. One of those blue wires is the Earth for the horn IIRC.......

    ......and clean that up......it looks like dog poo.....
     
  2. I am thinking this is an earth - I may remove it
     
  3. Phil, I assume you bought your carbs in the same e.bay store as I did (italian folks). The specifications of mine said that they are new and already jetted, buth that they do not know to which specfication (600, 750, 900, cagiva, etc..)

    I would love some advice here. How do I know (once fully installed) if they are not propperly set?
    If so, how does it get fixed?

    I dunno if you have the same concern.

    (don't care about Al's complains. Your bike is shinny and beautiful)
     
  4. I do have similar concerns - but i guess they is why i wanted a carburettor bike - so i can tinker.
     
  5. Birds of a feather..

    That's also why I love those animals...
     
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  6. found this on ducati ms, not sure where it comes from:
    https://dl.dropboxusercontent.com/u/6323071/production_numbers.pdf
     
  7. #287 WAH900ss, Apr 3, 2016
    Last edited: Apr 3, 2016
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  8. EDIT: Electronic float bowl heater introduced in 2000. (guess the question is which models of that year were fitted with carbs?)
    perhaps this might help as a baseline, lifted from the workshop manual, you may have this already:
    900ss Carb Spec. STD.
    Type: Mikuni BDST 38-B67
    Choke: 38mm
    Needle valve jet: Y-2
    Main Jet: 140
    Starting Jet: 70
    Idling Jet: 42.5
    Needle Jet: 5C19
    Pos. from top: 4th
     
    #288 WAH900ss, Apr 3, 2016
    Last edited: Apr 3, 2016
  9. I was referring to the excess of copper grease all over that tidy area under the dash..........
     
  10. From what I can find they were introduced in 2000. I think the only carbed model being sold then was the 750 Monster.
     
  11. Dang! you're right :) :)

    Phil! that's unacceptable! whipe it!, whipe it! :) :)
     
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  12. Great thread, look forward to seeing it on the road this month.
    Here is my bike, on the cover of Cycleworld. It is the one in the article that had the clutch fried when they did the 1/4 mile drag race times. Cagiva installed a Ducati Performance slipper clutch after that.

    [​IMG]
     
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  13. And what it looks like now,...

    [​IMG]
     
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  14. Mine has the oil heaters which do appear to work (on mine anyway)..........but if those carbs definitely have electric heaters, then I would be inclined to use them..............not hard to wire them so they work off the ignition and a spare fuse, with a suitable inline switch on the +ive wire.........

    ....but if the the carbs are not for a carby SS and are possibly for a Monster, then apart from the 'normal' jets, check the one in the opening of the throat....(IIRC the pilot air jet)........(there are two in the throat....one is fixed, the other will come out)..........I found different ones in an old pair of 900SS carbs to those in my 750SS.
     
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  15. What frame number is it? must be very early. Great to see the bike still looking as good. Brilliant article that - Do you happen to know who wrote it?
     
  16. The article was a test, so many editors contributed: Dan Canet, Brian Catterson, David Edwards, and Peter Egan are credited.
    I was told it was an early 1990 build, last three of the VIN are 653, (the rest is all zeros anyway). Build numbers on the early models is really vague, I was told. This bike was fully rebuilt with new old stock in 1998,99 and then put in a box in a warehouse until I bought it last year. First owner of the bike.
     
    #297 RockAZ, Apr 3, 2016
    Last edited: Apr 3, 2016
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  17. Another pic from a recent trackday. BTW, my Agip sticker is clear-coated along with the triangle logo on the gas tank.

    [​IMG]
     
  18. [QUOTE="....but if the the carbs are not for a carby SS and are possibly for a Monster, then apart from the 'normal' jets, check the one in the opening of the throat....(IIRC the pilot air jet)........(there are two in the throat....one is fixed, the other will come out)..........I found different ones in an old pair of 900SS carbs to those in my 750SS.[/QUOTE]

    Impressive.
    Al, you are, definitely, the source of all knowledges..
    I will ask you more detailed info on setting up the carbs once they are in. Won't you mind?
     
  19. The carbs are definitely from the 2000 edition of the monster 750
    [​IMG]

    just need to know the differences in the jetting - some research required! thanks for all info so far...
     
    #300 wolfram, Apr 3, 2016
    Last edited: Oct 24, 2017
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