EFI Kit

[NaturalFlavored]

Been researching a lot and reading a lot. I have lots of questions if anyone can answer them or have knowledge of doing the swap themselves.
First what EFI kit do you use or would use.
How does EFI tuning software work? When i first install it how would I go about finding out the timing of the engine.
I've been reading tuning websites and looking up EFI kits and still am so confused as I started. There's not a straight answer or info on how to get started.
If anyone can point me in the right direction much appreciated.
Still don't know what scooter to get but looking at 250cc at the moment and if i can figure out the tuning It'll help with my choice of which one to get.