- Apr 15, 2009
Might pick this up for a couple grand...
You guys here have been more helpful than the Ducati forums.
Are these good or bad? I've read that they are not bad. Cagiva instilled some good QA.
Not much interested in hopping it up. Just want to make sure it goes.GRM 450 said:Hi Dave,
650 Cagiva, same engine as the 650 Ducati Pantah (red and yellow), the last of the Pantahs before the 750 F1 series.
Fit 88mm cylinders and pistons and you have a 750. They fit straight on.
These are now sort after for anyone building a TT replica as they were one of the last Ducati engines with rear facing carbs on the rear head. They had smaller lift cams than the F1's and the Pantahs, but any of the later cams (up to the 800 and 1000s ) can be used but you will have to use 2 front cams as the bikes after F1 had forward facing rear carbs and the rear cam is ground to spin wrong for the earlier rear heads.
They are a nice thing to ride and are getting up in price.
All these have their electronic pickups boiled in oil similar to the bevel twins so watch for bad wiring insulation in the left case.
Reading through the workshop manual they don't specifically cover adjustment, more just disassembly. The Pantah Workshop Manual was slightly better.GRM 450 said:It's not rocket science, any competant person can do it. It helps if you have a good assortment of shims.
Same size as your 860 too, you just need some closers for this one.
I heard that the factory recommended 6000 km for the Pantahs. The workshop manual said to check it every 1500 km. Obviously in Oregon it's hard to put on 6k miles on any bike if you want to stay dry.GRM 450 said:swoosdave wrote,
"As a side note when we were at Barber last year we checked out the Ducati paddock (they had a standalone show area) and one vendor was selling some trick valve adjustment stuff. I remember giggling at the a) cost and b) reasoning why any sane person would put up with such a maintenance nightmare."
I own a Commando too, so I know about the maintenance involved with them too. (ones that get used regularly)
There's not that much difference.
If you shim the valves properly they are good for 20k kms before they need looking at.
The desmo maintenance nightmare is a myth.
I have 4 desmos and 1 norton, guess which one gets the most attention?
The 2 belt desmos are the least attention seekers.
If you do buy it and need assistance I would be happy to help.
Michael always has interesting things to say about just about every bike.bluto said:
Are you sure about removing the heads? I believe on these you do have to pull the rocker spindles (you can have them modded to slide over like the later bikes) to get to the shims but is pulling the head the only way?GRM 450 said:They are desmo so the heads will need to be removed to reseat the valves and adjust the valve clearances.