docc

I was going by the Parts Catalog washer size for 1999-2001. Can anyone get a caliper on the actual bolts? @Pressureangle?

This outcome does not support the "overcharging" scenario: > Not charging <

Perhaps it could be valuable to specify that the reference voltage comes from Relay #2. Sure, that supplies the headlight but also the brake light, horns, tachometer, power to the "warning lights" (including the battery light), as well as the reference voltage to the regulator.

I don't think so (for our V11). Yet, issues with this connector (indicator light and reference voltage) or its course of wiring/ connections might involve both the light behavior and the actual charging fault . . . I had to seal mine at some point . . .

Dang, bud. This needs more than "paint." Jus' sayin' . . .

Woah! @deadpen69's V11 Sport TT . . .

I don't think it was Aprilia that moved MGNA from NC, but Piaggio (who moved operations to New York, IIRC).

Ah, yes, that system is not charging at the battery at all. It should be 13.8-14.2vDC at some rpm, idle somewhat lower, but not that low. Those yellow alternator connectors do benefit from a clean, tighten, and seal. Some folks eliminate the connectors and hard wire there to eliminate that potential trouble spot. Still a mystery why there is no battery light KOEO. I am still suspecting an open connection somewhere: across the 30 fuse or an errant ring terminal that got left off either the positive or negative battery terminal. Also, cannot rule out a faulty new part (R/R). There's a name for that . . .

Back to the basics: What is the DC voltage, across the battery terminals: 1) Key off , after a few hours 2) Key on, engine off (KOEO) 3) Engine running, at "idle" (idle rpm can vary widely between our selections: 600 rpm to 1500 rpm) 4) at "some rpm" - in this case: what happens to charging voltage as the rpm rises from, say, 2500 to 4000 . . .

Yes, indeed . . .

Again, more confirmation through our good man, @v11_meticcio, with images and reference to the origins of our V11 motor from the SALA MOTORI (engine room) of the Moto Guzzi museo in Mandello . . .

The true predecessor to our big block Moto Guzzi V-twins!

Makes a big difference on the extraction opportunities . . .

The best methodology for putting Titanio canisters, grey Ballabio frame sideplates, and Rosso Mandello valve covers on your LeMans is to buy all those V11, rearrange the parts to your liking and keep them all. Seriously, let's ask the other inmates on the ward if that sounds crazy.

I love the Spine Frame exhibit . . . " Per Volare "

Yeah, man: Carl Allison ( @callison ), also archived on thisoldtractor under "Resources": https://www.thisoldtractor.com/guzzi007/sportissimo.html https://www.thisoldtractor.com/guzzi007/pdfs/1999_V11_sport.pdf @Weegie has also archived content in his dropbox:

A dab about the size of a worn pencil eraser, a couple times a day. Rubs right in, no burn - no smell. Accept no substitutes, get the "S" product . . . https://www.apohealth.de/en/products/traumeel-s-creme-50-g-creme-1288865

Let's specify the alternator output voltage is AC. Not sure it makes any difference to the discussion, but the voltmeter must be set AC for the alternator output and DC for the Regulator/Rectifier output. Also, isn't the V11 alternator some kind of induction device (no brushes) with the crank spinning coils of wire within a permanent magnet?

If I recall the lore correctly, that faring was the last outcome from the iconic Mandello wind tunnel.

That ticks a lot of boxes! Perhaps a close inspection of the ring terminals at the battery to be certain none got left off. As silly as that sounds, it has happened to a lot of us.

You've made great progress already! Others will have to address the voltage variance [ @Kiwi_Roy . . . ? ] What is the status and condition of your 30 amp "charging" fuse, @Sam P?

Something between the trailers and the tractor . . .

Smile!

I would like to have seen the factory airbox in the pile to "return it to original" . . . Chicks run off with these things all the time.