missing carb parts

[250ish]

The bike isn;t a Ducati but it is Italian and it's a carb that comes on some Ducati singles so I'm posting here hoping somebody can help.

Just picked up a Aermacchi 250 sprint, it has spark and compression but the tank has rust and the carb had old gas in it. During the process of cleaning the carb I noticed it's missing something. I believe its the choke mechanism but I might be wrong.

Can somebody tell me what's missing on the rod with the 90 bend at the top and the notched end? The carb is a Dellorto UB24B2.

Here's a pic.

[amartina75]

i am not familar with that carb, but i did a quick search and you are missing the choke.
looks like you could have a flip choke or a cable operated choke.

guzzino_2209_14250433.jpg

guzzino_2209_48698387.jpg

[250ish]

Thanks for the response, I have tracked down the part.

[DewCatTea-Bob]

" The bike isn;t a Ducati but it is Italian "

____ Every so often, our members may need reminding that this particular DUCATI-w.site is specifically intended just for Ducati-Singles ONLY, (mainly so as to keep it from becoming overwhelmed by topics concerning Ducati L-twin models, as most all other DUCATI-w.sites have been). _ So therefore it stands to reason that if we wish to keep-out topics concerning Ducati-models produced by the very-same factory-name, then we certainly ought wish to also keep-out topics concerning motorcycles not even associated with Ducati.
I-myself happen to like most all Italian-made motorcycles and the Sprint (as well as the 250 Benelli) has always been of particular interest to me (even long before Ducati themselves began also producing similar looking cylinders [on their L-twins] ). _ So then of-course I'm inclined to look-the-other-way on this particular thread's somewhat questionable trust-past somewhat beyond our intended (rather blurry) borderline. _ However if this thread had been started rather concerning merely/solely some-o multi.cylinder Jap.bike & Jap.carb, then there would more certainly need to be a STERN-warning given, and deletion of the thread-post would likely be justly forthcoming.
So I suggest that any of our members who wish to bring-up such barely-fairly related but rather 'OFF-topic' subject-matter, as this particular thread has pretty-much done,, that ya find some way to directly associate your thread-posting's topic with SOMETHING that also has anything at all to do with Ducati-Singles as well. _ The opening-post of this thread did indeed manage to do so, but just barely !
__ I'm not real sure that JimF (who's opinion is what REALLY counts, here at his w.site), completely agrees with my-own opinion on exactly what the cut-off points should precisely be, but I'm just placing this post merely as a 'reminder' for others who may otherwise consider going even further 'off-topic' and stretch-out our intended boundary for THIS particular DUCATI-w.site. _ (As I've been made aware that there's a fair number of us who do indeed really care about keeping this w.site restricted solely to Ducati Single-cylinder models [and DIRECTLY-related topics].) _ That's all.
__ I must add however that fellow-member 'amartina75' should be commended for his quite helpful contribution here, though !

____ Now so as to help-out this thread a little with becoming more pertinent for most of our listed-members, I'll add the following related interest...
__ I had a little experience with street-racing my 250-DUKEs against other-brand 250cc motorcycle models, back in the '60s.
The standard 250-Sprint was pretty-much equally matched against 250 BSA & Triumph models, and almost as strong as 250-Monza. _ (It was not always easy to tell for sure due to rider-size differences,, and on one occasion an attempt was made to help counter rider-weight differences by adjusting the amount of fuel carried in the tanks, [but wind-conditions made body-size another factor which also influenced the outcome].)
I believe the Duke-models had their slight edge over the other 250-makes due (at least partially) to the 74x57.8mm OVER-square bore & stroke, (as the other 250-engines were all under-square),, and perhaps also (to a much lesser extent), the Duke's OHC (vs those push-rod engines).
However stock 250-Scr.models were more clearly quicker than any of those other 250cc motorcycles. _ Unfortunately I never personally got a chance to street-race any Mark-III/3 model against any of those other-brand 250s, but it's certain that the outcome would've been even more obvious than was with the Scrambler-model, anyhow.
__ Anyway,, bottom-line here now is, if ya're on a 250-Duke and ya happen-upon a 250-Sprint, then rest-assured, (all else being fairly-equal), ya'll be capable of soon having the Sprint visible within your (blurred) rear-view mirror !


Dukaddy-DUKEs,
DCT-Bob

[Thevin]

" The bike isn;t a Ducati but it is Italian "

____ Every so often, our members may need reminding that this particular DUCATI-w.site is specifically intended just for Ducati-Singles ONLY, (mainly so as to keep it from becoming overwhelmed by topics concerning Ducati L-twin models, as most all other DUCATI-w.sites have been). _ So therefore it stands to reason that if we wish to keep-out topics concerning Ducati-models produced by the very-same factory-name, then we certainly ought wish to also keep-out topics concerning motorcycles not even associated with Ducati.
I-myself happen to like most all Italian-made motorcycles and the Sprint (as well as the 250 Benelli) has always been of particular interest to me (even long before Ducati themselves began also producing similar looking cylinders [on their L-twins] ). _ So then of-course I'm inclined to look-the-other-way on this thread's questionable trust-past over our borderline. _ However if this thread had been started rather concerning merely/solely some-o multi.cylinder Jap.bike, then there would certainly need to be a STERN-warning given, and deletion of the thread would be justly forthcoming !
So I suggest that any of our members who wish to bring-up such barely-fairly related but rather 'OFF-topic' subject-matter, as this particular thread has done,, that ya find some way to directly associate your thread-posting's topic with SOMETHING that also has anything at all to do with Ducati-Singles as well. _ The opening-post of this thread did indeed manage to do so, but just barely !
__ I'm not real sure that JimF (who's opinion is what REALLY counts, here at his w.site), completely agrees with my-own opinion on exactly what the cut-off points should precisely be, but I'm just placing this post merely as a 'reminder' for others who may otherwise consider going even further 'off-topic' and stretch-out our intended boundary for THIS particular DUCATI-w.site. _ (As I've been made aware that there's a fair number of us who do indeed really care about keeping this w.site restricted solely to Ducati Single-cylinder models [and DIRECTLY-related topics].)
__ That's all.

____ Now so as to help-out this thread a little with becoming more pertinent for most of our listed-members, I'll add the following related interest...
__ I had a little experience with street-racing my 250-DUKEs against other-brand 250cc motorcycle models, back in the '60s.
The standard 250-Sprint was pretty-much equally matched against 250 BSA & Triumph models, and almost as strong as 250-Monza. _ (It was not always easy to tell for sure due to rider-size differences,, and on one occasion an attempt was made to counter rider-weight differences by adjusting the amount of fuel carried in the tanks, [but wind-conditions made body-size another factor which also influenced the outcome].) _ I believe the Monza had it's slight edge over the other 250-models due (at least partially) to it's OVER-square bore & stroke, (as the other 250-engines were all under-square).
However a stock 250-Scr.model was more clearly faster than any of those other 250cc motorcycles. _ Unfortunately I never personally got a chance to street-race any Mark-III/3 model against any of those guys, but it's certain that the outcome would've been even more obvious than was with the Scrambler, anyhow.
__ Anyway,, bottom-line here now is, if ya're on your 250-Duke and ya happen-upon a 250-Sprint, then rest-assured, (all else being fairly-equal), ya'll be capable of soon having the Sprint visible within your (blurred) rear-view mirror !


Dukaddy-DUKEs,
-Bob

In other words you should have just asked "what part am I missing from my Dellorto UB24B2 carb"


sorry Bob

[DewCatTea-Bob]

" In other words you should have just asked "what part am I missing from my Dellorto UB24B2 carb" "

____ But that specific carb.model isn't stock for any Duke-model, so merely '24mm-Dellorto' would've been sufficient. _ But then either way, this thread would've then been left even more boring (for those of us particularly interested in Duke-info).


"sorry Bob"

____ I don't see where you ought to be sorry about anything other than not placing any posts for over 13-months.
It surely seems that you're a man of too few words !

____ How about taking a bit-more time to update us with something you've since done with any of your DUKEs !?
__ Have you ever posted a more-recent picture of your 450 here yet ?
I'd like to see it with that 32mm-Amal (from a BSA-500, you got off eBay) mounted on it.
__ You have a number of good Duke-projects we ought to get all straightened-out !


Hopeful-Cheers,
-Bob

[Thevin]

It surely seems that you're a man of too few words !


That's me..

[250ish]

If it helps I have a Ducati 250 too. I'll be sure to stay more on topic from now on.

[JimF]

It's not my site; I regard it as our site. We all contribute which is the only thing that gives it any value. I contribute the money to keep it going mostly because I don't have near the knowledge I need to keep my Ducatis going without the help of this forum's members. What I spend on the website is less than what I would spend on a trip to a mechanic. Others contribute knowledge to this forum and it my book that's worth far more than money.

Toward the question of other Italian makes, I am not opposed to starting a discussion group for that topic, especially in light of the fact that I just yesterday bought a MV Agusta 350.

One of my concerns which may be unfounded is that we don't inadvertently draw knowledge permanently away from other forums that are populated with enthusiasts for another make just like we are for Ducati singles.

Another concern is for the person posting the question, that there may be no one on this forum that has the expertise to answer the question and so there may be little in the way of responses which could wrongly be misinterpreted as a snub against a motorcycle make or the person posting the question.

In some respects I don't mind a non-Ducati question popping up in the normal discussion board, so long as it's not something like “How do I clean the lint out of my dryer vent?" The Italian carb question is closely related to our charter.

I myself have a Japanese carb on a Ducati and have asked questions here, and if I had an Italian carb not normally seen on a Ducati I probably would ask here first.

Let me know if you think we need a new discussion topic and we'll go from there.


Jim

[DewCatTea-Bob]

I'll be sure to stay more on topic from now on.

____ I was afraid that Thevin's condensed post may allow leading you to become enabled to be so unwarrantedly concerned.
The bottom-line jest of MY post (in case it wasn't quite clear), is that while your post was merely exploring the boarder-line -(neutral zone),, it's existence left-alone without any follow-up mention of it's stray-direction, COULD possibly allow leading to opening the door for even further excursions outwardly away from that which we preferably wish to remain loyal to.
So it should've been understood that I was not directly warning you-alone at all, but rather meaning to let it be generally realized by other (rather newer) members that this w.site is not at all a free-for-all 'bike' type website,, (as you-yourself let it be known that you were fairly well aware-of [with your opening-line] ).
__ So sorry if you came to feel any heat at all on the (non)- issue, as such was certainly-not the intended-case at all.


Hopeful-Cheers,
-Bob