Indiana Chuck

Well, that was much ado about nothing. I slogged through all 10 pages of this, expecting to make a spacer for a friend's V11. I *cleaned up the counterbores* in the wheel, cleaned the spacer, got out my depth micrometers, and had at it. If I were designing this part, I would specify the spacer to be the same length as the bottom of the two counterbores with a tolerance of plus .005", minus .000. His was plus .003". Perfect. Way to go Guzzi. So, why did his fail? Maybe a cheap OEM bearing? Dunno. Maybe the crud in the bottom of the counterbores keeping the outer races from fully seating? Could be. I officially quit worrying about this..

yep, they'll do that. I haven't tried this for insulation, but I'll bet it will work. Used on aircraft for years.. http://www.aircraftspruce.com/catalog/appages/stratofs.php

I wouldn't get too excited about this until you have a chance to get the engine warmed up. To the unitiated, Guzzis make a lot of noise when cold. It takes a while for the (long) pushrods to warm up and close the gap, the dry clutch sounds strange until lyou get used to it. Main bearings will sound like a thump on initial startup. Rod bearings normally rattle just as the engine is unloaded. From what you've said it doesn't sound like either. Don't worry, be happy.

We went through this on the Centauro several years ago. The idle stall happens when the bike is just slightly lean at idle. Probably adjusting the TPS and balancing the throttle bodies are all that is needed. As mentioned above, idle speed should be 1200 rpm.