So maybe your port/pipe guy should be on here asking.
Since you are expecting us to give carb recommendations for a set-up with specs that you can't provide.
Or maybe in a few more pages we can get all the pertinent info drug out of you if we ask the right questions?
copy this set-up...
http://www.ebay.com/itm/Yamaha-Banshee-Blaster-Leak-Down-Kit-Fits-Stock-26mm-Carbs-As-Well-As-28mm-/172557971718?hash=item282d41b106:g:i5AAAOSw9GhYl3Sj&vxp=mtr
http://www.bansheehq.com/forums/index.php?/topic/110585-leakdown-tester/
But use this, much simpler and easier http://www.homedepot.com/p/DANCO-0-15-psi-1-10-Increment-Gas-Test-Gauge-94352/100180536
Do the primary gears need to be replaced in matched sets?
I thought i read somewhere that they are engraved paired up.
Yamaha does offer them separate.
Asking for a friend, my shit ain't broke.
You have every right to find out where your carbs are.
But - it's actually only been 7 business days.
Always a good idea when ordering something desperately needed, to call and verify stock levels.