Author Topic: 1990 Ducati 750 Sport build  (Read 19330 times)

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Offline tweakin

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1990 Ducati 750 Sport build
« on: July 22, 2017, 03:55:54 PM »
So I have a buddy who had this parked in his garage for 15 years with only 8600 miles on the odometer. Picked it up today for a deal I couldn't pass up. Needs a good cleaning and rubber parts replaced but it's almost all there. Deleted airbox with dual 38 Mikuni carbs as well.  Plan is to let the build evolve as it goes but keep a bit of the 90's retro vibe in the process.

My old friend brandEn (yes, he is still around) wanted to see a build thread so here it is.











« Last Edit: July 22, 2017, 04:24:49 PM by tweakin »

Offline brandEn

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Re: 1990 Ducat 750 Sport build
« Reply #1 on: July 22, 2017, 04:08:12 PM »
First!

Offline tweakin

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Re: 1990 Ducat 750 Sport build
« Reply #2 on: July 22, 2017, 04:11:30 PM »
First order of business was to get it running.  Remote fuel tank since the fuel pump was shot and bit of oil in the spark plug hoes, a couple of hand turn overs then hit the button and she fired.  Sounded so sweet!

Started cleaning and it turned into this after a couple hours...



Soda blasted the engine and freshened it up a bit.  Stainless hardware coming soon.









Offline tweakin

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Re: 1990 Ducat 750 Sport build
« Reply #3 on: July 22, 2017, 04:14:11 PM »
17 inch wheels, inverted fork and rear shock from a 900ss to increase handling and overall performance in the works.




Offline calj737

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Re: 1990 Ducati 750 Sport build
« Reply #4 on: July 22, 2017, 04:33:27 PM »
Dude, you make even sexy bikes look good!  :D
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Steve_K

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Re: 1990 Ducati 750 Sport build
« Reply #5 on: July 22, 2017, 07:06:26 PM »
I like the 90's Ducatis.  I had a 96 900 SS and it was a good bike.  Think about new cam belts, they been sitting around for awhile.  Maybe be ok if you do not rev it much, but why risk it.  It looks great!!
Steve
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76 CB 550, 73CB750, 86 GSX-R750, 16 Slingshot
Old rides:305 Honda, CL350, 74 CB550
 05 SV1000S, 88 CBR600,92 VFR, 88 Hawk GT, 96 Ducati 900SS, 98 Kaw ZX6R, SV650

Offline 02z06dave

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Re: 1990 Ducati 750 Sport build
« Reply #6 on: July 22, 2017, 07:14:03 PM »
Love it. I've been hot on the 90s sport bikes lately. I need to get one

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #7 on: July 22, 2017, 07:29:17 PM »
Dude, you make even sexy bikes look good!  :D
Thanks man!

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #8 on: July 22, 2017, 07:30:03 PM »
I like the 90's Ducatis.  I had a 96 900 SS and it was a good bike.  Think about new cam belts, they been sitting around for awhile.  Maybe be ok if you do not rev it much, but why risk it.  It looks great!!
Steve
I ordered new belts before I even loaded the bike into my trailer.

Offline innovativems

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Re: 1990 Ducati 750 Sport build
« Reply #9 on: July 22, 2017, 07:55:27 PM »
Love that duc!  I'll be following this


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Offline SOHC4 Cafe Racer Fan

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Re: 1990 Ducati 750 Sport build
« Reply #10 on: July 22, 2017, 09:54:38 PM »
I, too, love a good 900SS or 750SS from the 90s.  Sex on wheels.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline seanbarney41

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Re: 1990 Ducati 750 Sport build
« Reply #11 on: July 22, 2017, 11:52:28 PM »
yeah
If it works good, it looks good...

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #12 on: July 24, 2017, 06:30:29 PM »
Stainless hardware for the engine, carbs sent out for vapor blast and rebuild.  The 900ss fore and front wheel should be here tomorrow for mock up.  Once I get the mock up completed I can tear it down and send off parts for powder and I can start the search for a good local painter.



Offline SOHC4 Cafe Racer Fan

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Re: 1990 Ducati 750 Sport build
« Reply #13 on: July 24, 2017, 07:04:17 PM »
It looks so simple and clean in black.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #14 on: July 24, 2017, 07:10:59 PM »
It looks so simple and clean in black.
I agree Don.  I just hope as it evolves it matches the vision I have in my head.  Parts are not as readily available as old Hondas which makes this build fun and a pain in the ass.  One thing I do know is that the frame is staying Ducati red, I had thoughts of changing it but keep coming back to red. I am thinking red frame, black body work and Brembo gold wheels or possibly red wheels.
« Last Edit: July 24, 2017, 07:13:06 PM by tweakin »

Offline Stev-o

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Re: 1990 Ducati 750 Sport build
« Reply #15 on: July 24, 2017, 07:48:54 PM »
WooHoo, another awesome Tweakin build in the works.  I too want a Duc one day...
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline RAFster122s

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Re: 1990 Ducati 750 Sport build
« Reply #16 on: July 24, 2017, 08:42:15 PM »
Well, at least it is not an old CA77/78...those things will drive you to the nut house because of misidentified parts that do not fit.  Ask ToyTuff about his if you want to hear a rant on it.  It was his first and last...
David- back in the desert SW!

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: 1990 Ducati 750 Sport build
« Reply #17 on: July 24, 2017, 09:43:58 PM »
Here we go again. Hold on guys! Looking forward to watching.
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #18 on: July 29, 2017, 07:33:33 AM »
Started the mock up of the bike.  keeping the front faring as is, including the square headlight.  Slight modification to the tail and might remove the rear  passenger pegs / exhaust hangers for a more modern approach with aluminum hangers.



Steering stem swapped on the 900ss front forks, this was easier than I expected using a little heat and my press.



Rebuilt the new to me 900ss rear shock and have been cleaning all the other 17 inch swap parts.



Carbs have been ultrasonic cleaned and in the process of rebuild.


Once the mock up is completed I will tear everything down and send the parts out to my powdercoater.  This weekend I hope to get the new belts installed on the engine, new clutch and do a valve adjust to button up the engine.
« Last Edit: July 29, 2017, 07:54:08 AM by tweakin »

Offline nvr2old

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Re: 1990 Ducati 750 Sport build
« Reply #19 on: July 29, 2017, 09:08:33 AM »
I always look forward to one of your projects, Tige.  Personally, I hate to see the stock red and silver graphics go away, but your visions are usually right on the mark.  I'm sure it will be an awesome bike now that it's in your hands. 
'76 CB550F-'72 XL250-'82 MB5-'82 CX500 Turbo-'77 naked Goldwing-'75 CB400F cafe'-'79 Suzuki GS1000S..hey, it's a Wes Cooley..

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #20 on: July 29, 2017, 01:41:57 PM »
I always look forward to one of your projects, Tige.  Personally, I hate to see the stock red and silver graphics go away, but your visions are usually right on the mark.  I'm sure it will be an awesome bike now that it's in your hands. 
Are you set up to paint in ID yet? 

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Re: 1990 Ducati 750 Sport build
« Reply #21 on: July 30, 2017, 12:46:42 AM »
Are the forks Marzocchi or Sachs?
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline tweakin

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Re: 1990 Ducati 750 Sport build
« Reply #22 on: July 30, 2017, 07:11:01 AM »
Its actually a Showa front end from a 97 SS.
Are the forks Marzocchi or Sachs?

Offline nvr2old

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Re: 1990 Ducati 750 Sport build
« Reply #23 on: July 30, 2017, 12:12:06 PM »
I always look forward to one of your projects, Tige.  Personally, I hate to see the stock red and silver graphics go away, but your visions are usually right on the mark.  I'm sure it will be an awesome bike now that it's in your hands. 
Are you set up to paint in ID yet? 

Ya know, Tige..without shouting to the world about it, I recently got access to a shop here, and I just finished a touch-up on a Wes Cooley replica GS1000S yesterday..and I'm going to fix a fairing for a CX650 Turbo for a friend of mine soon.  I might be in the market for some side work, but because I can only work on Saturdays there, it would have to be for people who are patient and not squeamish about material costs.  You, Branden, and Chris are people that certainly tick the right boxes, for sure.  Gimme a call sometime and we can talk about the possibility.  Your Duc would be a fun project.

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« Last Edit: July 30, 2017, 12:16:24 PM by nvr2old »
'76 CB550F-'72 XL250-'82 MB5-'82 CX500 Turbo-'77 naked Goldwing-'75 CB400F cafe'-'79 Suzuki GS1000S..hey, it's a Wes Cooley..

Offline SOHC4 Cafe Racer Fan

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Re: 1990 Ducati 750 Sport build
« Reply #24 on: July 30, 2017, 09:22:20 PM »
Its actually a Showa front end from a 97 SS.
Are the forks Marzocchi or Sachs?

Wow! I would have strongly suspected Ducati using Marzocchi.  That's cool.  Showa is so easily serviceable, too.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold