Maybe this already exists but I was thinking it would be awesome to start a running list and then maybe move it to the technical section of how people's carbs and exhaust and all that are set up. I can't do it properly because I can't remember my jet size (doh!) but I think this might help a lot of people get a good starting point for themselves.

Answer these questions.

Is your bike well tuned?

Year:
Mileage:
Air Filter:
Petcock:
Main Jet:
Pilot Jet:
White Spacer Mod:
# Turns on air/fuel mixture screw:
Exhaust:
Elevation:
Other Carb Mods:
Backfire:
Gas Mileage:
Smooth accel:
Spark plug color:


(thanks guys we're building a good list!)
Any thing else relevant?

How about a field to determine how well the bike is jetted? how/when it backfires, fuel economy, color of spark plug, if it sputters/hesitates/bogs down.

The stock getting changed between some years of the bike, so that might also be relevant.

So, with  that note, here is mine with the added note that it isn't just right yet:

Air Filter: cheap-o cone off ebay
Petcock: raptor
Main Jet: 152.5 (i think)
Pilot Jet: 52.5
White Spacer Mod: none (yet)
# Turns on air/fuel mixture screw: 2.5 (i think)
Exhaust: jardine
Elevation: ~1000ft
Other Carb Mods: PVC street corner pipe intake
Backfiring: all the friggin time   (especially downshifting, but also when shifting up, and a poof on shutdown)
gas mileage: 41 to 46 mpg
pulls: smooth to 3/4, no power from 3/4 to WOT
perfected: no. not even ballpark.  

Here's mine:

'06 S40, 15,700 miles
Stock muffler with baffle removed
Extended plunger @ 12,000 miles
150 main, 52.5 pilot with bleed holes, 2/3 spacer
Mixture screw 2 1/4 turns out
Open airbox with stock filter
Smooth acceleration from idle to WOT
Occasional poof on shutdown, frequent pops on upshift
Mainly jake brake rumble on decel with bangs when dropping to a little over 3,000 rpm
Light tan plug and exhaust color
Starts without throttle and choke down to about 60 degrees when cold
41-55 mpg depending on throttle hand  
Oil: Rotella T6 5W-40 Full Synthetic
Oil usage about a 1/4 pt for 1,000 miles in summer heat, less in winter
Riding style: Heavy throttle hand, fast, but no "stunts" like wheelies and such
Top speed indicated 95mph which is about 93.5 on GPS device
Driver weight 200lbs, with occasional 105lbs wife on back, which only seems to drop gas mileage slightly
Front tire stock IRC
Rear tire Dunlop K555, 4,000 miles maximum life

And mine:
'87 Savage, 20,000 miles.
Air Filter: OE
HD muffler (torpedo) with baffle knocked out.
Petcock: OE, on prime, vacuum plugged.
Jets: OE
White spacer: OE
Mixture screw: 2 turns out.
54.6 mpg
Some gurgling on decel.
"poof" on shutdown.
Lack of power top to bottom, due to used head, and running over the big rock. Don't know why my mileage is as good as it is, but I'd gladly trade a few mpg for a return of power. ( I'm thinking it's only a matter of time, and I'll be looking for a new motor, or a new bike. )

Is your bike well tuned? I guess so

Year: 2006
Mileage:12,000 and change
Air Filter:K&N drop in
Petcock:Raptor
Main Jet:152.5 w/ bleed holes
Pilot Jet:150
White Spacer Mod:2/3?...#4 nylon washer from ACE
# Turns on air/fuel mixture screw: depends but usually around 2 1/4
Exhaust: DynaPower (don't make anymore)
Elevation:5280ft
Other Carb Mods:Allen head screws (ya just gotta)
Backfire:sure...sometimes if I try
Gas Mileage:50-60
Smooth accel:yep
Spark plug color:haven't checked in awhile but my guess would be on the black carbon side of rich

What we are forgetting in this talk about "well-tuned" is that tuning is a "dynamic quality" as described by Robert Pirzig in Zen and the Art of Motorcycle Maintenance.  Something is constantly changing, and even when we get the "static quality" "perfect(?)" there are many things happening to change the so-called perfection.  There is no once-and-done in physics, or in life.

Mine...

07 3,700 miles
stock air filter
main 150
pilot 55 no bleed holes
2/3 white spacer
raptor
mix screw out 1.5
stock muffler
sea level

Just finished rejetting and it seems to have smooth accel all the way thru. Soon to replace with dyna muffler and kanN box filter. Probably need to retune but we will see. Very quick with my 160 lbs.

Here goes...

Is your bike well tuned? Moderately - not at 100% quite yet, but very happy with it  

Year: 2005
Mileage: just over 7,000
Air Filter: Aftermarket Cone
Petcock: Stock
Main Jet: 147.5
Pilot Jet: 55 w/bleed holes
White Spacer Mod: Not yet (next time I take off the tank)
# Turns on air/fuel mixture screw: 2 to 2 1/4
Exhaust: 36" Fishtail (minor baffling, but mostly straight through)
Elevation: 4500'
Other Carb Mods: SS Allen Bolts
Backfire: Similar to a Jake Brake, otherwise minor & usually no poof on shutdown
Gas Mileage: 37-40 but 99% in town and I like to hear that pipe  
Smooth accel: YES
Spark plug color: Haven't had it out  
Oil: Rotella T6 5W-40 Full Synthetic
Tires: F Shinko 712 100/90-19 R Shinko 712 140/90-15