docc

I'm not sure if I have a parts bike or an art exhibit . . .

I know it "says" $1.00-$5.00, but there is a current price request to be entered . . . someone ought to do that to get their current actual pricing.

Right? A $3800 Coppa that can be started with two screwdrivers!

That is the same TPS I got from CA Cycle Works shipped for $~92US. Anyone want to submit a price request to Alibaba?

So, for certain, my internal wheel spacer is 112mm and (using LuckyPhil's method of removing a bearing and using a caliper for depth to the seating surface) the distance between the the bearings is definitely 113mm. No idea why this set-up worked pretty much all this time and now it toasts bearings almost immediately. I'm replacing two other spacers to try and tighten up the potential stacked tolerances. Also, the SKF have a thinner inner race than the Chinese "National" and much thinner than the C3 Koyo. Could this be a factor? And is the C3 the right thing for this application? (Left to right: Romanian Koyo C3 / Xhinese "National" bought as Federal Mogul / Argentinian SKF ):

Yep. I would still check the voltages with a good DVOM. I've returned "AGM" chargers that didn't make the correct voltages. Is this one on Odyssey's List of Approved Chargers?

I use calipers a lot, but they’re awkward for certain things like a brake rotor with a ridge or trying to measure the width of the inner race on my sketchy wheel bearings .

Yeah, I am just only needing something "occasionally." "01s, 1-2s, 2-3s", then . . . Looking for a proper source . . .

I thought about just getting whatever HarborFreight has for easy money. It's just that the calipers I have don't "reach around" to take measurements as a micrometer would. I'll ping you email connections, Andy. thanks!!!

With my most recent struggle with wheel bearing failures and concern for "stacked tolerances", I felt it is time to get a micrometer set as the old dial caliper may just not be enough. Searching Grainger for Mitutoyo seemed a good approach. Until the $2500US set popped up! Uh . . . I'd have to part out the Sport! So, what is the collective wisdom on obtaining decent micrometers for things like wheel bearings and spacers for the V11?

TPS is easy to check with Ohm meter. See the EDIT in section 2: Decent Tune-up

Those are the Moto Guzzi accessories available when the bike was new, "For Off Road Only" plaques have been changed; round/ carbon fiber. We have always thought these were made by Mistral, but I have seen Agostini that look identical.

Listening to this over-and-over . . .

"Last Chance Texaco"

There is a smaller spacer on the other side of the drive-side bearing that indexes to the inboard reardrive bearing. Not sure how it is supposed to be dimensioned, but mine shows visible wear, so I'm looking to replace it as well. Like I said, hoping to close up some of the tolerance stack. Sheesh, our rear axle is a busy place!

Looks like the internal spacer is 0.045" undersize. There are four spacers along the axle including one inside the bevel box. I ordered the other three, a couple more bearings and a new outside needle cage to see if I can tighten up the tolerance stack. It already has a new axle. Internal space between bearings comes up 112.9 mm as best I can come up with. So, yeah, my spacer is short.

Look for a PM . . .

Ha, yep: 7mm turns my ECU fasteners and 9/32" "feels about the same" . . . It is turning wrenches around the ECU and positive battery terminal that can throw VERY undesirable sparks.

SKF 6204 2RSJEM (Made in Argentina) KOYO 6204 2RSC3GXM (Made in Romania) After all this time/ miles, I keep destroying my rear wheel bearings. WTF? I've crushed my bearing spacer? It is definitely loose between the bearing inner races and not "captured" once the bearing outer races are seated . . .

I have managed to source some high quality bearings, but keep suffering bearing failures like never before. Perhaps it is my installation technique. Perhaps my short spacer is finally telling on me. Seems my pinion bearing is also suspect . . .

milar sent me this slightly larger image. We're still working on hosting and posting the hi-res scan . . .

Wow, so great, footgoose. Thanks! I am really struggling with my rearwheel bearings thinking it is something I am doing wrong. Perhaps it is that "silly millimeter?"

What is the correct bearing spacer length for the early Sport 4.5 inch rim? (I found mine to be 112mm, but cannot be certain it is correct . . . )

I must agree. I've long kept a flash of innertube over that corner of the ECU next to the positive side of the battery. Otherwise, treat all those connections with DeOxit and it looks like you've made a great improvement!

That is so terrific, Mike! Thank you so much for posting this! I tried to find the images not long ago to repair another thread and could not find them on the vast web. (Let us see if we can post the hi-res images in Fileshare. I'm not sure the logistics of that, but will pm you since the image size may require hosting.)