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Because one comes standard in the Guzzi tool kit with every new bike along with a grease gun for the drive shaft fittings, a multimetre for the electrics and a tether to stop the bike floating away if you ever remove the flywheel. Ciao

Have a nice weekend!

My, but you have absolutely come to the right place, Sir!

So *that's* what that cable thing is for..

Thanks for the tip, but how did you know I have a copper hammer?

i did not even attempt it. I just took a throttle body off one side then slide the other out w/ the upper and lower mountings still on. 2 hex head upper and 2 hex lower. Probably easier to pull the left side off. right side has the fast idle contraption on the bottom mount. I took it off of mine but some might prefer to keep it. As far as mounting Breva TB's......don't know. My first concern would be the spigot size that mounts to the head. many other concerns after that... not even considering what flow and mapping problems it might bring

Did that on the tonti 3years ago, only 4000m, but still good . Cheers tom.

Superb bike roads in Telemark, BUT WATCH OUT for the guys in blue. Cheers tom Sent fra min SM-G903F via Tapatalk

I've done this with success on wheels for a few bikes and used a gap filling locktite on it.

Since you have nothing to lose at this point.. try this.. Take your Copper Hammer and a small prick punch, and put a gazillion punch marks around the ID of the bore. Leave the outer 1/8" unmarred so the bearing will start straight. Lube the outer race, (Lubriplate is good) and press that bad boy in there. The worse thing that can happen is you will have to sleeve it anyway, and this will probably work.

I'm certainly not qualified to add anything to this, but a lean cyl would bug the crap out of me, and I would chase it to the best of my ability. which would include coming on this forum and ask

I understand that it is a complex interaction of many variables. What we basically do is balance throttle bodies to try and compensate for most of the variables and in some cases match injectors. Of course we also try and make everything as close to the same as possible between the 2 sides, like valve adjust, compression (if it is off by more than a little), timing, etc. We are averaging all these variables out with how much air each side is sucking in by the TB balance. To achieve an even better possible averaging of these variables in addition to the TB balance I was wondering if temperature equalization might achieve this? Foe example, years ago on my earlier tonti bikes with distributors I would use dwell to set the points and not by gap. I would match the dwell for each side and not worry what the points were and I could achieve a better, smoother running motor. The point gaps were usually not that close. By using dwell, this gave me the exact same duration of points being open and closed. I'm just thinking of possible alternate ways to compensate for the mechanical variables that there is no easy inexpensive way to make the same between the 2 cylinders.

The reaction rod that attaches to the bevel box and the frame has rubber and steel bushings pressed into each end at the factory. They can wear out and create unwanted movement of the bevel box and slop in the drive train. Replacement bushings are not available from Moto Guzzi, and I was unable to find replacements anywhere else. I did find some spherical bearings that could be pressed into the reaction rod, but since they are thinner than the bushings they replaced and they have a larger ID I needed to have a set of custom made spacers made. Once those were done I put everything together and it seems to work just as it should. I attached a drawing with specs for the custom spacers and McMaster-Carr part numbers for the bearings and seals. I'll post a few pics in another post. MOTO GUZZI V11 REACTION ROD WITH SPHERICAL BEARINGS.PDF

Take pictures!

No doubt your are the first to have this happen. I believe it has to do with conjunction of the planets. They are aligned when the grease gun finally slips on.. then while pumping, one of them wobbles on it's orbit a bit.

Yeah, I did it. I put baby in a corner.....of her new garage!