The new Technical Rules have been published (see Latest Bulletins). Here aresome of the new features:
1) 125 Senior : Minimum weight of KF2 engines is now 158kg (per cik).
There is no more difference in the weight of the old homologation and the 2010 homologation engines.
2) 125 Junior:
a) Minimum weight for KF3 engines is now 145kg (per cik)
b) KF3 engines must now use the CIK homologated Carburetor from Tillotson (Model is HW- 10 & CIK homologation number is 6/C/15).
See below a copy of the homologation PDF.
c) KF3 engines homologated for 2007-2009 must use the ELTO 07 exhaust
d) KF3 engines homologated for 2010-1012 must use the ELTO 12 exhaust
PDF Documents: Carburetor Exhaust KF3