hey why did you get new stock engine when you had the oportunity to freakin tune the broken old one?
or
you are going to do exactly this thing whith the other scooter after engine swap ? (i mean new sccoter with old engine)
if you do please don`t get 300$ kits..they don`t worth it, it`s more fun with 30$ kits (yes thats the preice of a good quality cylider kit here)