Motorcycle Carburetor
Theory (PDF )
I highly recommend you read this. knowing how something works is the biggest
step towards fixing it
Accelerator Pump Theory & The Bog Problem
Jetting Calculator (Now an EXE Program )
YFZ 450 Shop Manual (Long Download) Not sure what year but the basics are the same.
Supercharged YFZ 513 cc EFI Build outline ( just an out line so far.. will keep it updated )