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Navah said it was a well monied kingdom. Ah is a cheap skate. that said, I do want a safe ride for da wife.

Perhaps I shall smooth the disk out with my sharp mind...

and a sanding stone.

...

and prolly a new disk. >meh<

Allrighty, here's a new problem for the Scooter Maniacs at large:

Where in Hades name can I find a rear brake disk for a 2008 Mainstreet 300??

Even my local motorcycle repair shop is scratching their heads on this one.

Here's the deal: My wife had so much fun on my Tourista 260, we've kept an eye out for a scooter for her.  What popped up locally was a Mainstreet 300.  After plopping cash for it and riding it home, we found some hidden issues with it.
Mainly, a leaky right front fork seal, and a record-groove screechy rear brake disk.

Local bike shop is getting the seal ordered so that can be fixed, but nowhere to be found is a rear disk!  They are thin enough that they really shouldn't be turned, but that might have to be the solution. Don't want to, but what can one do?  Disk PADS everyone and their dog has, but no disks.

OK... somewhat of an update on this 'situation'.
We've had a week of cool days here in the FL Panhandle, and with it, no return of the 'suddenly off' scooter fun.
Been driving back and forth to work, took it out on an 8 mile stint, and have been extra, EXTRA cautious on crossing traffic. Scoot runs fine. *sigh*
I am having a somewhat hard starting issue in the morning, but I will try enriching the carb a tad.
Wheezy, your suggestion will be tested this weekend, as to easily see the fuel filter is not a quick glance thing; it's hidden behind the 3rd level black plastic engine cover that takes about 15/20 min to get to. From what I recall, it IS at a slant, and yes, a bubble was seen in the filter. I'll try for level, using zip ties as needed. (ha! one more add on item for the Ultimate Tool Kit: Zip Ties)
fflintstone, I may be mistaken about this Diamo having an electric fuel pump. What I see inline the fuel hose is perhaps an electric fuel valve? Yes, yes... 'Give Us Pictures!' All you'd see at the moment is blue plastic. Chain of items goes: Fuel tank-hose-filter-hose-two wire metal 'thing/pump/valve/wigit'-hose-carb. I'll see if I can get a good pic of it for clarity's sake.

Good day, Gentlefolk.

I'm one of those folks that do his best to work on his own vehicles, 'cept when it comes to crank internals, or rebuilding.
I might be adding Electricals to that list as well.  I've got a brain stump puzzler on my Diamo Tourista that's causing me migraines, and, if left alone, might cause me to a) set the scoot on fire, or b) get pancaked some day.

Case one:  Rode said scoot to work (2.2 miles, one way), did fine.  Tried to fire up that afternoon, no dice.  Turns over fine, but would not catch. Tore out some hair, could not grasp what problem was.  Next day, did the 'unplug/ re plug' game with any ignition wires I could find. >varroom<.  Rode home. Cleaned up Igniter box connections as best as I could (a bit of corrosion on a couple of leads)

Case two: Rode to and from work, was JUST about home, and >rrrrrr..*silence* Coasted into driveway.  Did the plug game a few hours later, no dice. Next day, tried to start it for giggles, >varrroom<.  scratched head. Rode home. Replaced Coil and Plug (planned replacements anyways)

Case three: Was idling in traffic on the way home from work: > put put put put <....  *silence* Had to push into a parking lot.  Did the plug thing. No dice.  Two hours later, tried again, testing for spark >ZAP< had spark.  Replaced plug, tried again...  >varrroom< Rode home.

Stripped that puppy down to the little 257cc engine, checking wires, fuel lines (electric, works fine), looked over fuel filter (half full), checked valve gaps; checked good.  Battery at 13.5 volts, no load. Kicked tire; turned.  Checked belt; little dirty in there, but belt looked good.  Reassembled.  fired up. rode up and down street. Did fine.

3 days later, most of the way home, scoot dies again, on a straight back street, light throttle. like the other times: no cough, no stutter, no warning, just *off*.  Coasted to the side, thought happy thoughts of burning vehicles and rusting hulks at the bottom of the ocean.
I'll be heading back to it tonight to see if it at least wants to die at home.
Interspaced between these Cases I had driven it 20+ miles a few times, in excess of 55 mph here and there.  Hot as Hades over here, and noted the fan on this thing works fine, never overheated. Fired up fine to head home, with wife riding second.
I'm about at wits end with these shenanigans, and don't have a scooter repair shop in town, so I'd have to pay extra to have 'em come get it on a trailer, and there'd be no telling WHEN I'd get it back.

Any thoughts as to what more to try before consigning it to the Deeps would be greatly appreciated.

Mike M.
(at wits end, and boy, was it a short trip)

Update! I've found something to fix that only requires ONE PANEL to get to!
The Kick Stand Safety Switch!
My scoot left me stranded at my local Waffle House this morning, and would NOT start no way, no how. I thought I ran outta gas. Or perhaps my coil blew. Or the spark plug wire fell off. Or the fuel pump was faulty. Or I got some water in the gas. Or.. or.. or..
But no. one silly, single little micro switch decided to fail, and the fix involved me sacrificing a one inch bit of Motorola ear phone wire placed inside the safety switch harness plug to short across it.
And.... Varroom.
Memory for the win (later in the day, anyways): *former owner* "Yah, and occasionally, you have to jiggle the kickstand to get it to fire up, donno why"

(sigh)
I fought the Scoot.. and the Scoot Won.
This time. Took me over an hour and a half to get HALF way down into stuff needed to take off the body to GET to the engine topside. Side panels, back grab bar, back light housing, BACK side panels, seat, and, what defeated me for now, the mid body 'trunk component' that must come out front first, after disconnecting a couple of switches and the seat hydrolic lift. Urgh. After all that, my back said 'Nothin' doin', and I had to put it all back together. Didin't even get to try to remove the gas tank to gain access to the lifter ports to adjust anything.
I now know WHY that one motorcycle tech rolled his eyes after I said I had a scooter: "It takes (fracking) longer to take the (feltergarb) covers off then it does to FIX the P.O.S.!" (adjusted actual quote)
Well, on the plus side, the next time I try this, the outer covers will be quicker.
I'm going to attempt a slight idle speed adjust, and see if that will work for now.
Nukes are still an option.