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by lomax
Fri Jul 10, 2015 12:55 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Top Speed?
Replies: 8
Views: 6611

Re: Top Speed?

My 80 Darmah equipped with 40mm carbs and Contis ran 200 km/h (speedometer showing), while a friends 900 Super Light speedo showed 220 km/h then ! It is some years ago, because I do not often move my Ducati anymore, but as far as I remember the rev were at about 8500. I am sure, that my Darmah is st...
by lomax
Sat Mar 27, 2010 11:56 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Valve Stem Seals
Replies: 7
Views: 4899

So, I understand there is no chance to replace that o-ring without pulling out the valve !??
I guess I have to replace, because after 13 years of sleeping the engine smokes a little from the horizontal cylinder......

cheers

Joe
by lomax
Wed Nov 18, 2009 11:09 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah silentium noise levels required for TüV
Replies: 8
Views: 6913

@ JAR: before you get another 5-day licence plate and waste more time to discuss with the tester, it might be much better (faster, cheaper) to bring that bike to a Ducati dealer, who is a friend of old Ducatis and tell him to bring that bike "over the TÜV". Most dealers have a contract with a tester...
by lomax
Wed Nov 18, 2009 5:47 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah silentium noise levels required for TüV
Replies: 8
Views: 6913

JAR hopefully I can help you. I do have a 80 Darmah, that was registrated in Germany. It is not registrated for 13 years now, but I just brought it back in order and will show it the TÜV next spring. My Darmah is equipped with LaFranconi Mufflers, that have been bored a little (ø20mm through the fin...
by lomax
Tue Jul 14, 2009 12:58 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

Mercy beaucoup Craig :-D

lomax
by lomax
Mon Jul 13, 2009 11:41 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

ups.....lots of different statements Sorry for driving this worn sprockets - I must have been crazy 13 years ago and didn't recognize it after bringing it back in operation this year. :oops: The idea for high gearing was to preserve the old engine from high revs - especially on german highways, wher...
by lomax
Mon Jul 13, 2009 11:06 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

Here are the pics of the ground parts (housing and shaft/bearing seat). The sprocket was turned to outside, so the grounded shaft seat results from an earlier set up. http://www.funpic.de/fotoalbum/foto,265043.htm I will definetely switch to an 15 sprocket and put a ring beneath the rear sprocket fo...
by lomax
Sun Jul 12, 2009 11:30 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

Your ideas are the best - that is exactly, what I intended to do now.

I found a 15 teeth sprocket in my garage and will mount it.

Is a 106 link chain o.k. for the 15/36 drive ? Or would I need to shorten it ?

Cheers

Joe
by lomax
Sun Jul 12, 2009 8:25 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

Hi Martin !

That was my idea, too (just learned a new english word = lethe) It is just grease - sorry for not cleaning the case :oops: But because of the 16 teeth front sprocket the chain comes really close to the housing.

Joe
by lomax
Sat Jul 11, 2009 8:12 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

Reassembled the chain and rear sprocket today - now I know what you are talking about - see the pictures http://www.funpic.de/fotoalbum/foto,264660.htm Is it necessary to place distance pieces behind the sprockets or could I also use another chain size (e.g. 525 type) ? Looks like I should replace t...
by lomax
Thu Jul 09, 2009 4:51 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Darmah Rear Sprocket
Replies: 27
Views: 9410

I purchased a sprocket with 36 teeth shortly, but did not mount it yet. It is made of aluminum (found that a little strange, since today sprockets are made of (surface hardened) steel). The sprocket is the same as it is (originally ?) mounted on my '80 SD. I want to change the chain too. The (mounte...
by lomax
Mon Jun 29, 2009 4:15 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: My first vintage Duck
Replies: 45
Views: 13898

Good job ! Respect ! Thanx for the pics

Cheers

Joe
by lomax
Wed Jun 10, 2009 1:42 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: darmah with 40mm dellortos is it worth it?
Replies: 32
Views: 14644

Hmmmm.......I could count to 12 within 2 seconds or within 12 seconds or even within a day :shock: ;) "normal" german counting to 12 will happen in about 4 seconds :) (just tested it) Nevertheless - I adjusted both floats and soldered a SS washer on top of one tickler (to enlarge the concact surface...
by lomax
Tue Jun 09, 2009 5:29 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: darmah with 40mm dellortos is it worth it?
Replies: 32
Views: 14644

ups.....Australia is awake 8) I did push the tickers a few times too back then, but it should not make a difference, since you just open the float valve. It might even enhance the wear on the floats plastic surface I will get a workshop manual especially for Dell' Ortos (in German) soon. Hopefully I...
by lomax
Tue Jun 09, 2009 5:20 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: darmah with 40mm dellortos is it worth it?
Replies: 32
Views: 14644

Thank you Garry - I wonder, if 12 sec. is not too long :shock:

Best regards

Joe

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