So the 2013 Rotax Technical Regulations is out. Lots of changes.
Rotax Asia/Malaysia already announced to the banning of front brakes for Snr.
Any news/feedback on the carb side?
8.5 venturi only
min main jet size
float height spec (not given but i would assume 3/4mm)
Idle jets stamped 30, 35, 40, 45, 50, 55 and 60 are legal to be used
Idle emulsion tube stamped 30, 35, 40, 45, 50, 55 and 60 are legal to be used
It is not mandatory that idle emulsion tube and idle jet show the same size
Big changes I think..