Brand new cylinder head to fit:
Yamaha YBR 125 (2005-2006).
Yamaha YBR 125 (154FMi - Models only) (2007-2018).
This cylinder head has been manufactured to replace the original head on a Yamaha YBR125 for the years and models only.
It is possible to fit these cylinder heads for the non 154FMI 2007-2018 models. However you need to drill and tap the hole for the thermo unit. Some models you will need to reuse (or fit new) sprocket.