You should reinforce the engine mounts (especially the rhs front)It's there where the early Pantah cases cracked under stress of the (then) 750 conversions. Take a llo at the "NCR" type frame, that should give You an idea how to do it.
regards,
ducadini
Search found 298 matches
- Mon Sep 08, 2025 12:29 am
- Forum: 'Reverse Head' Pantah Engines [rear exhaust faces rearward] > Indiana, Elefant, Paso 350/750, 750 Sport & SS, Monster 600/750
- Topic: 900 Pantah
- Replies: 2
- Views: 23933
- Mon Sep 08, 2025 12:25 am
- Forum: 'Straight Head' Pantah Engines [rear exhaust faces forward] > F1, F3, Pantah, TL, XL, TT1, TT2, Al'Azzurra
- Topic: Pantah 500 SL restoration
- Replies: 8
- Views: 16955
Re: Pantah 500 SL restoration
Maybe we've "met" through another MM canal, but this is a 79 Pantah 500. You say the framenumeber indicates it's a 350 ? How did You come to this ?
Rims (clear edge), tank (screw-cap on top AND bgger than later tanks), seat (glassfiber with detachable cover with 2 screws on top) are the marks of the ...
Rims (clear edge), tank (screw-cap on top AND bgger than later tanks), seat (glassfiber with detachable cover with 2 screws on top) are the marks of the ...
- Sun Dec 04, 2022 3:12 am
- Forum: Squarecase Early 860/900 Crossover Gearchange Engines > 860/900 GT
- Topic: Ducati 860 GTS 1975 - Help!
- Replies: 5
- Views: 41605
Re: Ducati 860 GTS 1975 - Help!
Our experience with the old Ducati Elletronica ignition is : when it works, it works. First thing to go is the low-rev part : difficult starting because it's running on one cylinder until revs go over 2k, then the "defect" ignition kicks back in. No problem for racing :-D . The moment both low-revs ...
- Tue Nov 22, 2022 1:34 pm
- Forum: Parallel Twin Engines > GTL/Sport Desmo 350 & 500
- Topic: Advice on a GTL 500
- Replies: 1
- Views: 22277
Re: Advice on a GTL 500
Our first Ducati was a SD500. Best steering bike till now (still have to rebuild the F3/F1).
As You said : those parallel twins had some issues so after two years we bought a Darmah.
Current userbike is a US Paso 750. Not daily, but at least a tank/week.
If it wasn't so bloody difficult to work on ...
As You said : those parallel twins had some issues so after two years we bought a Darmah.
Current userbike is a US Paso 750. Not daily, but at least a tank/week.
If it wasn't so bloody difficult to work on ...
- Tue Nov 22, 2022 1:23 pm
- Forum: Squarecase Early 860/900 Crossover Gearchange Engines > 860/900 GT
- Topic: Ducati 860 GTS 1975 - Help!
- Replies: 5
- Views: 41605
Re: Ducati 860 GTS 1975 - Help!
You're sure Your timing's "on the dots" ? Rather easy to check behind the covers on top of the bevels. Remember it could take some turns to align.
You're sure You plugged the correct cylinders ? Remember this engine turns backwards.
And of course : RTFM.
have fun, we did on ours
ciao
ducadini
You're sure You plugged the correct cylinders ? Remember this engine turns backwards.
And of course : RTFM.
have fun, we did on ours
ciao
ducadini
- Wed Feb 02, 2022 2:54 am
- Forum: Chassis & Suspension Shop
- Topic: Fluid quantity for Rear Marzocchi - 1973 750 GT
- Replies: 2
- Views: 9110
Re: Fluid quantity for Rear Marzocchi - 1973 750 GT
@Peter : Ducaccino was asking for the rear shockabsorbers.
@ Ducaccino : did a "quick" search through our manuals but apart from the rebuild of the separate reservoir Marzocchi : nothing else on rebuilding earlier stuff. Just a mention that they should be overhauled every 30-40K.
If nothing turns ...
@ Ducaccino : did a "quick" search through our manuals but apart from the rebuild of the separate reservoir Marzocchi : nothing else on rebuilding earlier stuff. Just a mention that they should be overhauled every 30-40K.
If nothing turns ...
- Sat Jan 15, 2022 9:17 am
- Forum: Carburettor & Fuel System Shop
- Topic: Pantah 500 Carbies
- Replies: 8
- Views: 19345
Re: Pantah 500 Carbies
Before You start filing away : does anybody have acces to the measurements of 32 Dell'Orto slides ?
IIRC (they are TOO difficult to get to now) they have the same diameter, and there could be different cutaways.
In the partslist of the 650 Alazzurra, the USA part has indeed less cutaway than the EU ...
IIRC (they are TOO difficult to get to now) they have the same diameter, and there could be different cutaways.
In the partslist of the 650 Alazzurra, the USA part has indeed less cutaway than the EU ...
- Thu Jan 06, 2022 4:58 am
- Forum: Engine & Transmission Shop
- Topic: Restoration almost complete. Won’t start
- Replies: 6
- Views: 16868
Re: Restoration almost complete. Won’t start
Unless You've done something VERY extraordinary, Your bike HAS electronic ignition. But switch two near identical wires from the pickup and trouble starts. Follow the manual and everything should work. Don't forget a bevel crank spins backwards.
ciao
ducadini
ciao
ducadini
- Mon Oct 25, 2021 1:31 am
- Forum: Carburettor & Fuel System Shop
- Topic: darmah - leaky 36mm dell'orto carb (and headlight reflector repair?)
- Replies: 9
- Views: 17517
Re: darmah - leaky 36mm dell'orto carb (and headlight reflector repair?)
If You had the bike with closed petcocks for a longer time, carb may have been gummed a bit. Flowing gas may have cleaned some debri away.
A lot of assumptions but try to empty them before putting it away, unless You ride it very regularly.
BTW : when You have the contact ON and You push the ...
A lot of assumptions but try to empty them before putting it away, unless You ride it very regularly.
BTW : when You have the contact ON and You push the ...
- Sun Oct 24, 2021 7:39 am
- Forum: Engine & Transmission Shop
- Topic: Clearance between desmo opening rockers
- Replies: 3
- Views: 11402
Re: Clearance between desmo opening rockers
Yes Andy, we're only discussing the sideways play.
IIRC (familytime now so garage is off-limits) You should have about 1 mm to play with those closing rockers without interference with the valvestem.
If this isn't enough, I would grind a bit of the sideway shim-side of the rocker, NOT the part that ...
IIRC (familytime now so garage is off-limits) You should have about 1 mm to play with those closing rockers without interference with the valvestem.
If this isn't enough, I would grind a bit of the sideway shim-side of the rocker, NOT the part that ...
- Sun Oct 24, 2021 7:16 am
- Forum: Carburettor & Fuel System Shop
- Topic: Pantah 500 Carbies
- Replies: 8
- Views: 19345
Re: Pantah 500 Carbies
the original Dell'Orto PFH 36 AD & AS carbies are playing up big time on my Pantah 500SL.
So did they work fine before ?
I have cleaned them and replaced obviously worn parts and rebuilt them.
What are "obviously worn parts"?
I am considering replacing them as the plug keep getting fouled after ...
So did they work fine before ?
I have cleaned them and replaced obviously worn parts and rebuilt them.
What are "obviously worn parts"?
I am considering replacing them as the plug keep getting fouled after ...
- Mon Oct 18, 2021 8:16 am
- Forum: Engine & Transmission Shop
- Topic: Clearance between desmo opening rockers
- Replies: 3
- Views: 11402
Re: Clearance between desmo opening rockers
Fitting the cam without tightening it (just enough to compress the shims), then shim the closers, then the openers (just sideways, valveplay comes later). If needed You can always shim the camshaft a bit more out or in (and then the closers and openers).
And yes, it can be close in some heads, we ...
And yes, it can be close in some heads, we ...
- Tue Aug 17, 2021 10:36 am
- Forum: Wheel, Brake & Tyre Shop
- Topic: Rear brake linkages - 900ss
- Replies: 5
- Views: 14818
Re: Rear brake linkages - 900ss
Weren't these M7 AND left or right threaded ??
I dumped those, replaced them with ball/head couplings and aluminium bars.
Kept the original ones buried deep.
ciao
ducadini
I dumped those, replaced them with ball/head couplings and aluminium bars.
Kept the original ones buried deep.
ciao
ducadini
- Tue Aug 17, 2021 10:31 am
- Forum: Introduce Yourself
- Topic: Intro
- Replies: 2
- Views: 10798
Re: Intro
Not even a (printed) partslist was published so originality of GF parts is always a point of discussion.
Sure hope that (if it is a genuine GF) all parts are there. Otherwise : caveat emptor.
As Craig said, the GF (or better 1974 SS) was only 401 (or 411) times assembled, so roughly 800 still exist ...
Sure hope that (if it is a genuine GF) all parts are there. Otherwise : caveat emptor.
As Craig said, the GF (or better 1974 SS) was only 401 (or 411) times assembled, so roughly 800 still exist ...
- Sun Jun 27, 2021 8:15 am
- Forum: Engine & Transmission Shop
- Topic: 860GT Clutch Basket play , excessive?
- Replies: 2
- Views: 10983
Re: 860GT Clutch Basket play , excessive?
Better change the bearings, when getting of the line the primary puts some sideload on the basket and it could rub against the crankcase.
ciao
ducadini
ciao
ducadini