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Discussion starter · #41 ·
By way of an update, the welder who is repairing my frame believes that the cracks in mine are not due to stress, but most likely due to the fact that the threaded bungs for the tank hold down were welded after the frame tube was welded to the steering head. He believes that they didn't anneal or "normalize" the area before welding on those threaded bungs.

-tj
 
Discussion starter · #42 ·
While I wait for my frame to be repaired I'm taking the available time to do some maintenance on the engine. In addition to checking and adjusting the valves (they all needed it) and replacing the cam belts, I'll give it a thorough cleaning so it looks good in the newly painted frame.

Doing this work definitely makes me feel old, or at least realize how many years have passed since these machines were new, and so highly regarded.

When I got my first 900 SS back in 1993, they were hard to find. At the time, there were only a couple dealers in the Bay Area, and they rarely had more than one example on the showroom floor. The parking lot at Alice's was mostly Goof2s, Gixxers and Yamahas....with some BMWs sprinkled in. Arrive on a Ducati and you were special. If it was an 851 you were even cooler.

I still contend that the 900 SS is one of the best street bikes ever made, and that they will always be worth owning, especially those made from 92 until the restyle.

What is sad however, and it should not be a surprise, is that parts are getting hard to find, even as Ducati sells more motorcycles every year. The Italians have never been great about preserving OE parts supplies for their vehicles. Even sources for pedestrian parts such as gaskets and o-rings are drying up.

In any event, the Bay Area is home to at least one good independent shop, Advanced Cycle Service, and Jim is a long time friend and reliable source.

I bought an engine stand from Motowheels that I bolted to my lift, for ease of maintenance. When the time is right, I can bolt the swingarm to it, and then begin frame assembly.

Image



-tj

PS-the framed photo on the wall is of me on my 95 SS SP at Thunderhill. It was this track day that set me on the path to selling the SS and buying and then racing my 916. I always regretted selling the SS, which is why I'm so glad that I have this one...or at least, the pieces of one.
 
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PS-the framed photo on the wall is of me on my 95 SS SP at Thunderhill.
I first thought this photo was what you were referring to. I thought "damn, this guy is good, he's got his bike sideways going into the corner!!!"

And thank you for taking the time to take us along your restoration journey. I for one, really enjoy reading these and hearing about people's relationship with their old bikes. I need to get back up to Alice's soon! I do remember showing up there with my Honda NC-30 and I was considered pretty cool back in the day.

Image
 
Discussion starter · #45 ·
Cylinder head studs? I believe they're the uprated ones for the hi-compression pistons. I know that the head studs have been known to fail but I don't know how common it is.

I'm hesitant to fix it if it ain't broken. Many of the fasteners in the crankcase are super tight, and I fear trying to remove them for fear of breaking them off in the case.

I haven't even tried to see how tight the head studs are.

-tj

It could be a good time to change the studs if yours are chrome.
 
Discussion starter · #47 ·
They're definitely chrome....I did not know how to ID the upgraded studs v OE.

-tj

Just look at them if they are chrome be concerned but do NOT throw a wrench on them, they were brittle. If they are a bronze or black color you have upgraded studs already, only be concerned if the studs are chrome colored.
 
Discussion starter · #48 ·
I think the title of this was "Surfing Asphalt." I think it's from Mick's final championship.

Thanks for reading and your support. Yeah man, NC-30? Made a SS seem common, which they were compared to the Honda.

Are you still in the Bay Area?

-tj

I first thought this photo was what you were referring to. I thought "damn, this guy is good, he's got his bike sideways going into the corner!!!"

And thank you for taking the time to take us along your restoration journey. I for one, really enjoy reading these and hearing about people's relationship with their old bikes. I need to get back up to Alice's soon! I do remember showing up there with my Honda NC-30 and I was considered pretty cool back in the day.

View attachment 1108847
 
I am currently in the process of changing out my cylinder studs. And a lot of other "while I'm in there' jobs. I had a broken stud so I had no choice. The bad studs are not magnetic so it's easy to check if that's what you have and if you do I'm with @ducvet ... change then while the engine is out and it's easier to do. I was also worried about breaking them off inside the case trying to remove them but I got lucky. A lot of penetrating lube for a couple of days then a lot of heat and a stud puller got it done with no further drama. You will regret not doing it now if one breaks after the engine is back in the frame.
 
Discussion starter · #50 ·
OK-duly noted...where are you sourcing the replacement studs?

-tj


I am currently in the process of changing out my cylinder studs. And a lot of other "while I'm in there' jobs. I had a broken stud so I had no choice. The bad studs are not magnetic so it's easy to check if that's what you have and if you do I'm with @ducvet ... change then while the engine is out and it's easier to do. I was also worried about breaking them off inside the case trying to remove them but I got lucky. A lot of penetrating lube for a couple of days then a lot of heat and a stud puller got it done with no further drama. You will regret not doing it now if one breaks after the engine is back in the frame.
 
Thanks for reading and your support. Yeah man, NC-30? Made a SS seem common, which they were compared to the Honda.

Are you still in the Bay Area?

-tj
No longer in the Bay. Moved back home to socal years ago though my daughter goes to Cal so we are always up there visiting. I really do miss the motorcycle roads up there. Not much here in Socal.

OK-duly noted...where are you sourcing the replacement studs?

-tj
Ca Cycleworks sells them. That's what I used my Superlight.
 
When I was trying to source them a month ago CA Cycleworks was out of stock as was Nichols so on advice of @ducvet I just ordered stock Ducati studs from CMS in the Netherlands.

Edit: CMS had excellent service and pricing on the studs and other consumables I needed to do the job.
 
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Oem replacements would be my first choice followed by the california cycleworks, the nichols are good but also chrom looking so it confuses things later on. If you pull one head and cylinder you should be able to tell if the studs are oem or nichols based on design differences.
 
Discussion starter · #54 ·
Ah. I'm a Bay Area native. We were in Santa Monica for a few years in the early 2000s...I had my big GS down there with me but was terrified to ride it anywhere in LA. I did some dual sport rides with Jim at Rawhide Adventures on it....back home in Los Gatos now for good.

-tj

No longer in the Bay. Moved back home to socal years ago though my daughter goes to Cal so we are always up there visiting. I really do miss the motorcycle roads up there. Not much here in Socal.


Ca Cycleworks sells them. That's what I used my Superlight.
 
Discussion starter · #55 ·
I'm certain they're not Jon's head studs....this motorcycle was purchased and engine built before Jon was doing anything but his engine mount bolts.

I guess I'm confused....aren't the OE studs the ones that break?

-tj

Oem replacements would be my first choice followed by the california cycleworks, the nichols are good but also chrom looking so it confuses things later on. If you pull one head and cylinder you should be able to tell if the studs are oem or nichols based on design differences.
 
Discussion starter · #56 ·
Since you're all being so helpful, I'm wondering if you can help me with a carb problem that I believe is related to the ethanol spike fuel we get here in California.

Since I no longer ride as frequently as I used to, the Super Sports carbs (Keihin flat slides) would leak after she'd been sitting for more than a couple weeks. It seems that the float bowls would stick open, and thus piss fuel all over. Removing the floats and cleaning them is a pain in the ass and not something I want to do every time I want to ride her. I'd even installed a shut off valve in between the carbs and tank, and would run the carbs dry when I'd return from a ride. That didn't seem to help.

I asked the question here a while back and got no real answers.

Any of y'all experiencing similar symptoms? If so, how do you fix it?

-tj
 
I guess I'm confused....aren't the OE studs the ones that break?

-tj
They are referring to ones produced later for other models.

Since you're all being so helpful, I'm wondering if you can help me with a carb problem that I believe is related to the ethanol spike fuel we get here in California.

Since I no longer ride as frequently as I used to, the Super Sports carbs (Keihin flat slides) would leak after she'd been sitting for more than a couple weeks. It seems that the float bowls would stick open, and thus piss fuel all over. Removing the floats and cleaning them is a pain in the ass and not something I want to do every time I want to ride her. I'd even installed a shut off valve in between the carbs and tank, and would run the carbs dry when I'd return from a ride. That didn't seem to help.

I asked the question here a while back and got no real answers.

Any of y'all experiencing similar symptoms? If so, how do you fix it?

-tj
I am bit confused. You shut off the fuel valve, run the carbs dry, and they still leak? If so it seems you have two issues...one with the shut off valve and one with the float bowl or float needle. Curious, if you turn on the ignition (but not start the bike), do you see fuel returning to the fuel tank?
 
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Since you're all being so helpful, I'm wondering if you can help me with a carb problem that I believe is related to the ethanol spike fuel we get here in California.

Since I no longer ride as frequently as I used to, the Super Sports carbs (Keihin flat slides) would leak after she'd been sitting for more than a couple weeks. It seems that the float bowls would stick open, and thus piss fuel all over. Removing the floats and cleaning them is a pain in the ass and not something I want to do every time I want to ride her. I'd even installed a shut off valve in between the carbs and tank, and would run the carbs dry when I'd return from a ride. That didn't seem to help.

I asked the question here a while back and got no real answers.

Any of y'all experiencing similar symptoms? If so, how do you fix it?

-tj
The shut-off valve seems to be the weak link in this issue.

I will gladly trade you my rebuilt OEM Mikuni's for your faulty flat slides .... lol
 
Discussion starter · #60 ·
Apologies-I was not clear.

So the float bowls seem to stick "open" (down) even when I turn the fuel off and run them dry. If she sits, when I turn the fuel tap on, fuel just leaks out of the overflow tubes.

Perhaps I can replace the float needles, or clean the seats....it's hard for me to believe I'm the only one with this problem. Ethanol is crap but CA is not the only state that uses it.

-tj

They are referring to ones produced later for other models.


I am bit confused. You shut off the fuel valve, run the carbs dry, and they still leak? If so it seems you have two issues...one with the shut off valve and one with the float bowl or float needle. Curious, if you turn on the ignition (but not start the bike), do you see fuel returning to the fuel tank?
 
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