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Old 11-09-2006, 04:08 PM
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Default '88-91 750 Sport?

My uncle & I just bought a 1990 750 Sport and I'm looking for info on this bike - Google hasn't produced much detail so far... a few spec sheets, photos, etc. but that's about it. I have all of Mick Walkers' Ducati Buyers Guides and they are pretty vague.

Anyone else have one on here? Looking for info and sources for parts, service manuals, parts manuals, history of the model, production numbers, etc. I also have a '99 Monster 750 but they are very different.

From what I can tell this bike is a "'tweener" model between the F1 and the Supersports that came out in '92. From the pics, it looks like the bike is mostly old F1 parts... frame, swingarm, and motor look really similar. Other information seems a little contradictory - the buyers guides say the bikes came with 17" hoops in 1990 for example but our bike has 16" rims.

Any information would be welcome. Here are some pics:




Thanks,
Don Zielke
Columbus, OH
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'90 750 Sport
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Old 11-10-2006, 04:38 AM
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the Sports were a pretty good bike, but because it was an "interim" model it didn't sell real well here in the US. When the SS came out and wowed everyone, all the Sports got nicknamed "Poor sports" and were discounted heavily to move them. Those look like the stock wheels to me, they came with 16" same wheels as a 750 Paso. Updated engine with forward facing intake port on vertical head and Weber carb off the Paso. Most had odd Weber digital ignition that is impossible to repair these days. Change it out to Kokosan if the Weber fails. Tires are hard to find for those wheels. It is complicated to change to 17's because of the 280 mm front rotor is hard to find.
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Old 11-10-2006, 01:27 PM
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Quote:
Originally Posted by donzielke
Anyone else have one on here? Looking for info and sources for parts, service manuals, parts manuals, history of the model, production numbers, etc. I also have a '99 Monster 750 but they are very different.

From what I can tell this bike is a "'tweener" model between the F1 and the Supersports that came out in '92. From the pics, it looks like the bike is mostly old F1 parts... frame, swingarm, and motor look really similar. Other information seems a little contradictory - the buyers guides say the bikes came with 17" hoops in 1990 for example but our bike has 16" rims.
Ian Falloon's "Standard Catalog of Ducati Motorycles" (or something like that) gives production numbers on many bikes and is a decent source of info for most Ducati models.

That model never came with 17" wheels. The later 900ss did, but they came out in 1991. I'm no expert on that model, but on first glance the turn signals, exhaust, grips, and maybe the mirrors(?) are aftermarket. As previously mentioned, those wheels are stock.

I'm afraid that thing is a bit newer than my vintage bikes, and a bit older than my modern bikes, so I'm not familiar with sources for parts. You could maybe try Domiracer for manuals? I think there is a Pantah mailing list you could search out, I'm sure people there would know a lot more. The bike isn't all that rare, I know of a few people that own one.
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Old 11-10-2006, 05:36 PM
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Quote:
Originally Posted by meyersperf
the Sports were a pretty good bike, but because it was an "interim" model it didn't sell real well here in the US. When the SS came out and wowed everyone, all the Sports got nicknamed "Poor sports" and were discounted heavily to move them. Those look like the stock wheels to me, they came with 16" same wheels as a 750 Paso. Updated engine with forward facing intake port on vertical head and Weber carb off the Paso. Most had odd Weber digital ignition that is impossible to repair these days. Change it out to Kokosan if the Weber fails. Tires are hard to find for those wheels. It is complicated to change to 17's because of the 280 mm front rotor is hard to find.
Thanks for the info!!

The previous owner ("p.o.") had trouble with the Weber and junked it in favor of twin Mikunis, with intake runners from a later bike. It actually runs great right now, but the intake runners put the carbs too close to the battery to fit pod air filters, which is what he wanted to do. He had started to weld up a new battery box but never completed it and as such had just run without any filters.

It looks like it will be easier to cut off the brackets he started to weld on the frame and fabricate an airbox so I can get a filter of some kind in there. I'll post pictures up tonight to give everybody a good look.

I don't know if the ignition system has been changed out or not, thanks for the tip.

I really like the look of the stock wheels, we'll keep them. I tried swapping a 16"/18" combo for 17s on a similar vintage VFR and it was too much work - you change the wheel, then you have to do brakes, and forks, maybe new shock, etc. Not going there. Tires will be a chore to find but we should be able to find something. Did these bikes come with bias ply or radial tires?

Thanks,
Don Zielke
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Old 11-10-2006, 05:51 PM
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Quote:
Originally Posted by DesmoDog
Ian Falloon's "Standard Catalog of Ducati Motorycles" (or something like that) gives production numbers on many bikes and is a decent source of info for most Ducati models.

That model never came with 17" wheels. The later 900ss did, but they came out in 1991. I'm no expert on that model, but on first glance the turn signals, exhaust, grips, and maybe the mirrors(?) are aftermarket. As previously mentioned, those wheels are stock.

I'm afraid that thing is a bit newer than my vintage bikes, and a bit older than my modern bikes, so I'm not familiar with sources for parts. You could maybe try Domiracer for manuals? I think there is a Pantah mailing list you could search out, I'm sure people there would know a lot more. The bike isn't all that rare, I know of a few people that own one.
Excellent!! I'll look it up and try and find that book.

I wondered if Mick Walker might have had some of the info incorrectly listed or if it might have been a US-model/Euro-model difference. Like I said above I'm happy with the look of the stock wheels, we won't be messing with them.

Yes, the front and rear turn signals and mirrors are those cheesy carbon-look pieces from Lockhart-Phillips. The might look OK on a Ninja 500, but look kind of out of place on this bike. We'd like to find the stock signals, but if we can't we'll go with a more basic-black aftermarket signal housing. Same with the mirrors - definitely want the OEM units back if we can find a set.

The windscreen is a replacement from Fast By Ferracci. It needs a good going over with some plastic polish, but it's in good shape otherwise. Pipes are another unknown - stock ones were black and had tapered ends. These look nice from a distance but the left side muffler is pretty chewed up from the low side.

Rare or otherwise, I think it's a neat looking bike. This is only the second one I've ever seen, which doesn't mean much, but I don't recall seeing more than one up at Mid-Ohio when Ducati was the featured marque for Vintage Days. My uncle has restored a LOT of British bikes in the past (and currently owns a bunch of 'em), but this is my first classic bike.

So it has the Pantah motor in it? Good to know... How about bodywork? Any sources still out there for OEM or aftermarket bodywork?

Our intent is to make it a good as-reliable-as-possible runner. We'll definitely be riding it, it won't be a museum piece. Thanks for your help!!

Thanks,
Don Zielke
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Old 11-10-2006, 08:20 PM
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Quote:
Originally Posted by donzielke
So it has the Pantah motor in it? Good to know... How about bodywork? Any sources still out there for OEM or aftermarket bodywork?
I'm not positive it's a Pantah, but that's what came to mind. My knowledge is pretty limited on Ducatis from the mid 70s through 1991.

I'd check with Airtech on bodywork. They may have something?

I have a soft spot for that bike. I remember sitting in a bar with a friend of mine looking at information on one when it was new. I was in school still and couldn't imagine ever having enough income to buy a toy like that.

Flash foward to present day and I've got multiple Ducs in my garage now, with more on the way if I ever sell my Mustang. (But don't tell my wife that!)

Moral of the story: Kids, stay in school!
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Old 11-12-2006, 09:51 PM
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OK, did some more reading. It's not a Pantah motor, it doesn't actually have a name, it's the same motor as the 750 Paso.

The single biggest upgrade was to remove the Weber carb and replace it with twin Dell'orto carbs, There was actually a full-blown kit you could buy to do this. Although from what I have read, it looks like that with proper jetting (factory jetting was way too rich) and the carb heating kit it sorted it out pretty well.

Another problem was the tires - it has a 3.75" front rim, and runs 130/60-16 stock. The rear is 5.0" wide and has a 160/60. Mine has a 170/70 on it right now. According to Ian Falloon a common upgrade was to run 130/70 up front and 160/70 out back. Metzeler has a Sportec M1 or M3 available in the 130/70 size but I couldn't find anything in a 160/70-16 (from any tire company) for the rear. The only matched set of course is the Michelin A59X/M59X combo.

I got the camera out and snapped a ton of photos. The bodywork is actually in very good shape. Just a few scrapes and bruises.

I need mirrors, shift lever, and front turn signals. Does anyone have any good pictures of these pieces so I know what I'm looking for?
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Old 11-13-2006, 12:41 AM
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Quote:
Originally Posted by donzielke
The single biggest upgrade was to remove the Weber carb and replace it with twin Dell'orto carbs, There was actually a full-blown kit you could buy to do this. Although from what I have read, it looks like that with proper jetting (factory jetting was way too rich) and the carb heating kit it sorted it out pretty well.
Back in the day, there was an article in one of the bike magazines (Cycle perhaps) that had Ferracci's cure for the Weber on that engine. If I remember correctly, it was a sidebar to an article comparing a Ducati (the 750 Sport maybe?) and the Honda Hawk. Maybe someone here will remember it more precisely, I'd have to look for it in one of many boxes of magazines.

You might also want to check out www.ducatipaso.org. There are a lot of guys there with 750 Pasos that would know more about the carbs, etc.
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Last edited by DesmoDog; 11-13-2006 at 01:24 AM.
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Old 11-14-2006, 02:11 PM
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Craig -

That is an awesome site! Good info out there, thanks for the link.

Through that site, I also found a couple of other links that might prove helpful, like DOCC, and another one in England.

BTW, do you get down to Mid-Ohio very often? I thought I saw a post of yours about coming to VMD a few years ago when Ducati was the featured marque. Looked up on your site and saw you were in Michigan. I bought my Monster from my brother-in-law in Grand Rapids...

Thanks,
Don
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Old 11-14-2006, 11:02 PM
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Quote:
Originally Posted by DesmoDog
Back in the day, there was an article in one of the bike magazines (Cycle perhaps) that had Ferracci's cure for the Weber on that engine. If I remember correctly, it was a sidebar to an article comparing a Ducati (the 750 Sport maybe?) and the Honda Hawk. Maybe someone here will remember it more precisely, I'd have to look for it in one of many boxes of magazines.
The Cycle World January 1991 issue has an article called "More Speed For The Sport" which was the full blown Pro Italia/Dell 'Orto swap. There's a side bar to the main article, called "The 90-percent Solution" which details Ferracci's fix for the Weber. It's available in the book "Cycle World on Ducati:1982-1991."

All Ferracci did was install some slip-ons and rejet. Cycle World said it was better but still had problems and that the Dell 'Orto swap worked better.

Hope this helps,
Chris
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Old 11-15-2006, 01:42 AM
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Quote:
Originally Posted by donzielke
BTW, do you get down to Mid-Ohio very often? I thought I saw a post of yours about coming to VMD a few years ago when Ducati was the featured marque.

My 907 was on display in the Ducati Museum tent at the 2005 VMD. I was at VMD last year but didn't bring a bike.

Quote:
Originally Posted by Chris Meyer
The Cycle World January 1991 issue has an article called "More Speed For The Sport" which was the full blown Pro Italia/Dell 'Orto swap. There's a side bar to the main article, called "The 90-percent Solution" which details Ferracci's fix for the Weber. It's available in the book "Cycle World on Ducati:1982-1991."

All Ferracci did was install some slip-ons and rejet. Cycle World said it was better but still had problems and that the Dell 'Orto swap worked better.
Yeah, what he said! Apparently I had the article confused with another one, but that's the sidebar I was talking about. I figured someone would know about it!
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Old 11-16-2006, 01:05 AM
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Quote:
Originally Posted by DesmoDog
My 907 was on display in the Ducati Museum tent at the 2005 VMD. I was at VMD last year but didn't bring a bike.
Then we probably met! I was one of the local Desmo guys working in the museum tent and at the Ducati owners registration table.

Don
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Old 11-16-2006, 01:37 PM
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Quote:
Originally Posted by donzielke
Then we probably met! I was one of the local Desmo guys working in the museum tent and at the Ducati owners registration table.
Small world.... but I wouldn't want to have to paint it!

The owner of the 750 Sport that was on display @ VMD is on the Paso forum, but I don't think he checks in much. He's also on the Bevelheads mailing list (he has a bevel 750 Sport too) so if you'd like to be put in touch with him I've got his e-mail somewhere. He seems to be pretty knowledgeable about the bike.

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Old 11-17-2006, 07:35 PM
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Quote:
Originally Posted by DesmoDog
Small world.... but I wouldn't want to have to paint it!

The owner of the 750 Sport that was on display @ VMD is on the Paso forum, but I don't think he checks in much. He's also on the Bevelheads mailing list (he has a bevel 750 Sport too) so if you'd like to be put in touch with him I've got his e-mail somewhere. He seems to be pretty knowledgeable about the bike.

I remember your bike and that grouping too, I had a picture just like yours on my cell phone for quite a while.

Definitely hook me up with his email address!
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Old 11-18-2006, 03:24 AM
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PM Sent...
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Old 12-01-2006, 01:19 AM
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Hey donzielke, I have one that I just did a total restoration on. I've been posting a lot on Ducatipaso.org. Mine has the Dellorto PHF 36 with pod filters (yes they fit but tight!). I have the 16" rims but have gone with the larger sizes based on Falloon's recommendations. I would be impressed if you found mirrors, I have the bar end mirrors that to me look better. I found an original Ducati maintenance manual on ebay. However, take it from me, it sucks big time. It leaves out huge portions of how to do certain things and it was translated poorly. Your best bet is to get a Haynes 2v maintenance manual. It is almost the same motor with the exception of the clutch actuation.
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Old 12-30-2006, 02:03 AM
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BTW: The mufflers on the sport look like old Cobra F1's--aluminum. Popular upgrade of the day.

The Dell'orto's are the way to go..but the Weber can be made to work with the right jetting and a pressure regluator set to 3 psi. BUT..if you have aftermarket carbs of any type that work...leave 'em..you're better off.

Some did up- grade to 17" rims, like the later Paso's...but it is a PIA. Try to find some tires!!

I've got a shift lever and peg assembly off a 88 Paso that may be the same part numbers...if you can find out, I might sell them.
Let me know here: tricklidz@yahoo.com
NICE bike...BTW
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Old 01-14-2007, 07:43 PM
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Nice to see this thread.

Here is one of mine.
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Old 01-14-2007, 07:49 PM
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with the 900





Yes 16" wheels are correct. Info on these are very limited. My bike was imported few years back from london. I picked up all the sales,import,manuel,ducati pin, From the owner when I bought mine.
Sence then I have turned it into a daly runner, But only add 75 miles a year to her.
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Old 01-15-2007, 03:58 PM
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Quote:
Originally Posted by 07faster
Sence then I have turned it into a daly runner, But only add 75 miles a year to her.
You must not have to run very far for only 75 miles per year! I am in the process of changing over my wheels to higher profiles to raise the height for better handling. So far the biggest hurdle I have is that the front fender no longer fits. Going to take it to my body guy to see what he can do.
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