The carburetor cleaning should done in an ultrasonic cleaner to get the deep hidden clogs. It is too delicate for using a dip cleaner or pressurized cleaners.
But before doing invasive work check to is if the engine will hit on introduced fuel mix. If it hits then it likely carb problems; if not then it is cylinder problems ie lack compression due to struck ring or cylinder damage. Most 2C I work on here needs at least 100 psi compression to start.
