um CBF 125 Service Manual page 35

4.4.1.2. move the cylinder head assembly
4.4.1.3. Remove the cylinder head seal gasket and the
two position pins
4.4.1.4. Use special tooling to dismantle valve collet seat
ring, valve, valve steam seal and valve spring
respectively.
4.4.1.5 、 Place the parts dismantled in order.
CBF 125 AIR COOLING ENGINE SERVICE MANUAL
RENEGADE SPORT & SCRAMBLER X 125 EFI
35