Hi Levi and welcome to Ninjette!
Have you checked for spark? Do you smell unburned petrol coming out of exhaust?
What you have is clogged carbs. Spray carb-cleaners no longer work to dissolve old dried gas varnish due to removal of chlorinated compounds. You'll have better luck using pee!
1. You need to completely disassemble carbs down to individual components for thorough cleaning back to factory-fresh condition. Down to every last component that cannot be disassembled any further.
2. Soak in ultrasonic cleaner using caustic radioactive solvents for days on end.
3. Use various types of wire to clean out every jet, orifice and fuel-circuit passage in carb-body
4. Clean out all these openings with soda-blasting @ 100000 psi
5. Re-assemble with new O-rings and seals
Please see following links for more details and photos of what needs to be done.
https://www.ninjette.org/forums/showthread.php?t=333573
https://www.ninjette.org/forums/showthread.php?t=333176
https://www.ninjette.org/forums/showthread.php?t=334365
https://www.ninjette.org/forums/showthread.php?t=330213
https://www.ninjette.org/forums/showthread.php?t=330960
https://www.ninjette.org/forums/showthread.php?t=323737
https://www.ninjette.org/forums/showthread.php?t=323452
https://www.ninjette.org/forums/showthread.php?t=322846
https://www.ninjette.org/forums/showthread.php?t=321223
https://www.ninjette.org/forums/showthread.php?t=317977
https://www.ninjette.org/forums/showthread.php?t=317810
https://www.ninjette.org/forums/showthread.php?t=316395
https://www.ninjette.org/forums/showthread.php?t=315193
https://www.ninjette.org/forums/showthread.php?t=299855
https://www.ninjette.org/forums/showthread.php?t=280658