The Moto-Guzzi Nuovo Falcone VOC

the sleeve was seized in the bushes, rusted solid and the cupped washers weren't refitted by the previous owner (and the bike's restorer). Instead he took up the endfloat with with flat washers that were a bit thick for the job. The only way that swingarm was moving was on the spindle and that wore away a bit of clearance inside the frame, letting everything get loose.

Yes: we had another owner whose assembly had rusted up solid, and had a similar wear inside the frame plates…

Good job getting it apart. I can understand why you left the old bushes in, as it’s an awful job getting them out…

Hmmmm....

Some silliness on my part: the swing arm wasn't worn, the bolt was loose.

...but why was it loose?
Possibly because the sleeve was seized in the bushes, rusted solid and the cupped washers weren't refitted by the previous owner (and the bike's restorer). Instead he took up the endfloat with with flat washers that were a bit thick for the job. The only way that swingarm was moving was on the spindle and that wore away a bit of clearance inside the frame, letting everything get loose. I haven't ridden the bike regularly in 15 years.

Anyway, the first item of business was to fit a grease nipple and fill it up with grease. It was after that I discovered the loose spindle. Tightened that up and took it for a run up and down a gravel lane. No suspension worth talking about.
Two: take the swinging arm out - which I managed without taking the mudguard off. There are little squares welded to the inside of the frame, shims where the spindle bolt holes are.
Three: pressed the sleeve out. I pushed it back and forth a few mm to begin with, giving it a squirt of penetrating oil each time and then got it moving about a third of the way. I cleaned off the exposed surface with a file and gave it a smear of grease and pushed it back out the other side. It's pitted but the centre wasn't rusty. It was really tight to start with and I had to use the long handle on my press. It fell out when I got to about two thirds through.

A press might be helpful, but locating the swinging arm perfectly in line and adequately supported against the ten tons might be a challenge. One of the other members took his to an engineering shop, who tried and failed to press the axle out. IIRC they ended up drilling it out, which must have been a challenge.
Let’s assume for now that you can press out the axle: at least you have the flanges of the bushes to support the load while you do that.
However, once the axle is out, you’re still left with the two bushes inside the tube, and at least the first of these will be impossible to press out unless you are able to make some kind of expanding collet press tool, that can be slid through the top bush, and then expanded to press on the lower.
And at that point, you have nothing with which to support the swinging arm, as the bush flanges are the same OD as the tube… Mine was in a vice, and by the time I finally got the bush removed, I had cut a slot in the web stiffener, which was the primary reaction to the applied impact.
Hopefully, you can manage to dissolve much of the rust first, and hopefully, that will mean they will come out more easily. You might even be lucky enough that they have previously been replaced, and reassembled with the grease that is so sadly lacking in anything assembled in Mandello!
I wish you good luck, and look forward to hearing of a successful outcome.

All fine so far, and I haven’t come up with anything better in the ideas department. If doing another, and I do have another, I might drill for the grease nipple first, and try to inject some rust dissolving fluid into the annulus before attempting disassembly. It was very, very brutal…
I’ll wish you good luck: hopefully you won’t need it!

Hello my 1971 nuovo falcone runs great ,starts and runs great except if i try to give it full throttle it then bogs down and miss fires until you reduce the throttle opening , you can slowly feather the throttle until a higher speed is reached .am i correct in thinking carburetor issue .it has the standard delorto carb and is totally stock 
regards Oliver

Morning Oliver, and sorry for the long delay in replying. The forum is so infrequently used these days, I don't check as often as I should....
I have experienced exactly the same as you, and for two separate but interconnected reasons. The first was when I decided to protect what was left of my rusty silencer, and fitted another and much more restrictive pipe: the second was when I replaced the stock air filter with a fake K&N style conical filter. In both cases, the result was a mixture that was too rich on full throttle. I was especially surprised by the air filter, as I would have expected a cotton filter to be less restrictive than the stock paper filter. However, many years later, I discovered that the stock filter was sealing so badly, it was effectively doing nothing at all....
If you have the standard silencer, and the standard air filter, then it may be worth considering altering the size of the main jet. You would think that then engine picking up when the throttle reduced would be an indication of weak running (reducing throttle reduces the amount of air, so you would think richens the mixture) but I'm pretty sure that mine was running rich.
From the manual:
Choke: 29mm diameter
Slide: 50
Emulsion tube: 265 P
Main jet: 132 (NB, Mick Walker's book says 122?)
Pilot jet: 50
Needle: V 10 2nd notch from top
Idle screw: 1.25 turns out

Good luck!