1990 Ducati 750 Sport - Page 2 - Ducati.ms

yellerduck · May 23rd, 2006, 11:12 am

"I know the earlier SS900's had issues with cracked frames at the neck tube/steering tube weld, but anyone know if the SS750 had the same problem?"

Yep, mine is cracked.

Desmo_Demon · May 23rd, 2006, 12:03 pm

Quote:

Originally Posted by yellerduck

"I know the earlier SS900's had issues with cracked frames at the neck tube/steering tube weld, but anyone know if the SS750 had the same problem?"

Yep, mine is cracked.

Ouch....I hope you didn't just now find out. Some people say that it is an easy reweld fix and not worth the effort of a frame replacement (and the labor involved) with trying to get DNA to replace the frame. Is this why you asked about the white frame? Are you planning on getting it welded up and possibly reweld the frame?

Personally, I think the white frames just look *right* on the older SS bikes, but they can be a bare to keep clean. At least the white will be a little easier to touch-up than the gold/grey frames. I think a black frame with a yellow bike looks great and a red frame with a red bike looks good, too.....a silver frame may look pretty good with your 750 with all the silver on the fairings.

yellerduck · May 23rd, 2006, 12:16 pm

yes, I plan on getting it welded and repainted. I thought about silver, but for some reason I want to go with white. It may work out visually because there is white in the large Ducati stickers.

Stick · May 23rd, 2006, 12:36 pm

Howdy Yeller':

No surprises with the Desmodomics. They've been the same since 1979 for the belt driven engines, when the prototypes started. Wouldn't surprise me a bit if the rockers, cams, etc. were interchangeable with present day 2V. Only thing in the mid/late 80's were the rear exhaust on the rear cylinder. Before that the carbs were on "the back side" of each head.

Hot looking bike. Reminds me of the '85 F1A with a lot of nice trellis frame to gawk at.

duc97sp1 · May 24th, 2006, 8:26 am

Quote:

Originally Posted by yellerduck

"I know the earlier SS900's had issues with cracked frames at the neck tube/steering tube weld, but anyone know if the SS750 had the same problem?"

Yep, mine is cracked.

The early 90s 900ss had problems with the frame cracking at the steering head. They also had a VIN plate riveted to the frame and they cracked at the rivets. Too many wheelies

From 95 or 96 on the frames were beefed up and somewhere along the line they quit using the riveted plates.

Ducati has been very accomodating with replacing frames long after the warranty expired and depending on the dealer labor was also included. Turn around times for the frames could be lengthy so using a *competent* local welder was an option.

As far as a white frame, I think the early 90s red 900ss with white wheels & frame was a real looker but I don't think it would look so good on the Sport. The red frame & wheels really set it apart, imho.

Quote:

"Hot looking bike. Reminds me of the '85 F1A with a lot of nice trellis frame to gawk at."

Yup, the Sport was essentially an F1 chassis with "economical" components, ie forks, shocks & the infamous Weber carb.

Motophoto · May 24th, 2006, 8:46 am

I have a 1995 Ducati SuperSport 900 SS SP and the frame cracked on it. Ducati did give me a new frame, this was about 7 or 8 years ago. The swing arm also cracked and had to be fixed. Funny... if it was a Honda we would all say it was a lemon but even with these problems it is my favorite bike

.

rooster747 · Jul 2nd, 2006, 10:25 pm

thanks for the heads up! dispite all this, however, i bought a 90' 750S anyways. i walked into the dealership to get a lens for my rear turn signal, and walked out with a Duc.
this is my first Ducati, so im crossing my fingers. i think it might be a fabian cortez replica. but i just dont know, needless to say i have alot of reading up to do.

thanks!

Underblog · Nov 12th, 2007, 6:32 pm

I just took delivery of a 1990 750 Sport, and I have several questions and observations about the bike .

1. I can unlock the seat, but I cannot lift it up to (presumably) get at the tool-box. Is there a trick to this? I am told the owner's manual is in there!
2. The clutch seems sticky; that is with the lever pulled in the bike will still lug around in gear. Adjustment needed, or will a sticky clutch basket do this?
3. Shifting is definitely notchy. From first back to neutral is well nigh impossible, and upshifts are about a 50-50 proposition. Is this a known defect or can I expect things to loosen up?
4. The bike came with Mikuni's installed. Are there any tuning/rebuilding tips?

I am sure there will be more questions, but I appreciate any response to the above.

Eric

**oalvarez** · Nov 12th, 2007, 9:22 pm

Bravo on the older bike, just love the design, all facets. The moto screams "Ducati Heritage." Borderline garage queen in my eyes. I love it for its looks, just like my 900ss sp.

Enjoy and congrats!

TonyTuzz · Nov 12th, 2007, 9:38 pm

Ha! I traded my '90 Sport for a '92 851 back in the day.

Congrats on a neat bike.

It sounds like some clutch actuation issues- I'd start with a good bleeding, making sure all the master cylinder, slave, etc are working right. Mine was notchy under the best circumstances- Mobil1 oil seemed to help shifting a lot.

Also, I tried an aftermarket slave cylinder and the ratio was too low- it didn't push the pressure plate our far enough to work properly. Someone might have tried this on yours, as the stock pull is pretty, ah, manly.

IIRC, the seat either slides back or flips up sideways- not a normal seat removal.

The Mikunis are probably off of a later 750. A good reliable choice. The Weber that came on the bike can be made to work, but tuning either is a black art.