the 16.16 should come with a filter and high flow airbox on it already. same with the 15.15.
this jobber right here should come on it.
from what i can tell, tomos intake is 18mm.
you might need a shim or something.
maybe this one, im no expert just trying to piece this together in my head.
SHA's have one jet for everything. the PHGB's are the ones with idley jets and needly needles. what jet to run? no idea. and plug chopping is easy and pretty essential. jet rich, run wot, kill the bike, unbolt it and look at it, rejet accordingly. easy peasy.
i dont see why you couldnt just unplug the pump and block off the hole in the intake but why not unbolt that pump and do it right? i think themopedjunkyard lists both straight and offset intakes with and without injector holes, so just buy the one without one or buy one with it and put a bolt in it or something.
i've got a 95 and im going a similar route just unkitted. bought an estoril. considering going baller and buying a 15.15 or 16.16 but might just tough it out on the stock carb with the high flow filter majiggy. still trying to figure out about what range of jets to buy myself.